Home / 130,494,613.72-180,087,189.50-71,761,747.18

Finding the Fourth Proportional to 130,494,613.72, 180,087,189.50 and 71,761,747.18

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Solution

The fourth proportional to 130,494,613.72, 180,087,189.50 and 71,761,747.18 is: 99,033,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,494,613.72 : 180,087,189.50 = 71,761,747.18 : x
  2. Step 2: Convert to fraction form
    130,494,613.72/180,087,189.50 = 71,761,747.18/x
  3. Step 3: Cross multiply
    130,494,613.72x = 180,087,189.50 × 71,761,747.18
  4. Step 4: Simplify right side
    130,494,613.72x = 12,923,371,361,996,506
  5. Step 5: Solve for x
    x = 12,923,371,361,996,506/130,494,613.72
  6. Step 6: Final answer
    x = 99,033,753.15

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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.