Home / 130,388,082.30-195,582,123.45-78,732,017.10

Finding the Fourth Proportional to 130,388,082.30, 195,582,123.45 and 78,732,017.10

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Solution

The fourth proportional to 130,388,082.30, 195,582,123.45 and 78,732,017.10 is: 118,098,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,388,082.30 : 195,582,123.45 = 78,732,017.10 : x
  2. Step 2: Convert to fraction form
    130,388,082.30/195,582,123.45 = 78,732,017.10/x
  3. Step 3: Cross multiply
    130,388,082.30x = 195,582,123.45 × 78,732,017.10
  4. Step 4: Simplify right side
    130,388,082.30x = 15,398,575,087,919,708
  5. Step 5: Solve for x
    x = 15,398,575,087,919,708/130,388,082.30
  6. Step 6: Final answer
    x = 118,098,025.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.