Home / 1,800,869,981.40-2,485,278,245.88-997,097,474.43

Finding the Fourth Proportional to 1,800,869,981.40, 2,485,278,245.88 and 997,097,474.43

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Solution

The fourth proportional to 1,800,869,981.40, 2,485,278,245.88 and 997,097,474.43 is: 1,376,037,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800,869,981.40 : 2,485,278,245.88 = 997,097,474.43 : x
  2. Step 2: Convert to fraction form
    1,800,869,981.40/2,485,278,245.88 = 997,097,474.43/x
  3. Step 3: Cross multiply
    1,800,869,981.40x = 2,485,278,245.88 × 997,097,474.43
  4. Step 4: Simplify right side
    1,800,869,981.40x = 2,478,064,662,222,768,640
  5. Step 5: Solve for x
    x = 2,478,064,662,222,768,640/1,800,869,981.40
  6. Step 6: Final answer
    x = 1,376,037,519.54

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Double scale
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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.