Home / 85,071,760.20-127,761,605.10-74,490,179.40

Finding the Fourth Proportional to 85,071,760.20, 127,761,605.10 and 74,490,179.40

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Solution

The fourth proportional to 85,071,760.20, 127,761,605.10 and 74,490,179.40 is: 111,870,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071,760.20 : 127,761,605.10 = 74,490,179.40 : x
  2. Step 2: Convert to fraction form
    85,071,760.20/127,761,605.10 = 74,490,179.40/x
  3. Step 3: Cross multiply
    85,071,760.20x = 127,761,605.10 × 74,490,179.40
  4. Step 4: Simplify right side
    85,071,760.20x = 9,516,984,884,330,956
  5. Step 5: Solve for x
    x = 9,516,984,884,330,956/85,071,760.20
  6. Step 6: Final answer
    x = 111,870,083.12

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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.