Home / 15,270,731,180.66-21,073,278,813.90-8,840,822,286.76

Finding the Fourth Proportional to 15,270,731,180.66, 21,073,278,813.90 and 8,840,822,286.76

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Solution

The fourth proportional to 15,270,731,180.66, 21,073,278,813.90 and 8,840,822,286.76 is: 12,200,143,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270,731,180.66 : 21,073,278,813.90 = 8,840,822,286.76 : x
  2. Step 2: Convert to fraction form
    15,270,731,180.66/21,073,278,813.90 = 8,840,822,286.76/x
  3. Step 3: Cross multiply
    15,270,731,180.66x = 21,073,278,813.90 × 8,840,822,286.76
  4. Step 4: Simplify right side
    15,270,731,180.66x = 186,305,112,993,034,469,376
  5. Step 5: Solve for x
    x = 186,305,112,993,034,469,376/15,270,731,180.66
  6. Step 6: Final answer
    x = 12,200,143,581.14

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Find fourth proportional to 7,635,365,590.33, 10,536,639,406.95 and 4,420,411,143.38
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Double scale
Find fourth proportional to 15,270,731,181.66, 21,073,278,815.28 and 8,840,822,287.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.