Home / 18,506,989,984.18-25,539,646,178.21-10,586,393,320.18

Finding the Fourth Proportional to 18,506,989,984.18, 25,539,646,178.21 and 10,586,393,320.18

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Solution

The fourth proportional to 18,506,989,984.18, 25,539,646,178.21 and 10,586,393,320.18 is: 14,609,222,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506,989,984.18 : 25,539,646,178.21 = 10,586,393,320.18 : x
  2. Step 2: Convert to fraction form
    18,506,989,984.18/25,539,646,178.21 = 10,586,393,320.18/x
  3. Step 3: Cross multiply
    18,506,989,984.18x = 25,539,646,178.21 × 10,586,393,320.18
  4. Step 4: Simplify right side
    18,506,989,984.18x = 270,372,739,700,763,000,832
  5. Step 5: Solve for x
    x = 270,372,739,700,763,000,832/18,506,989,984.18
  6. Step 6: Final answer
    x = 14,609,222,781.87

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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.