Home / 85,202,344.65-127,803,516.98-74,679,812.85

Finding the Fourth Proportional to 85,202,344.65, 127,803,516.98 and 74,679,812.85

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Solution

The fourth proportional to 85,202,344.65, 127,803,516.98 and 74,679,812.85 is: 112,019,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,344.65 : 127,803,516.98 = 74,679,812.85 : x
  2. Step 2: Convert to fraction form
    85,202,344.65/127,803,516.98 = 74,679,812.85/x
  3. Step 3: Cross multiply
    85,202,344.65x = 127,803,516.98 × 74,679,812.85
  4. Step 4: Simplify right side
    85,202,344.65x = 9,544,342,729,264,796
  5. Step 5: Solve for x
    x = 9,544,342,729,264,796/85,202,344.65
  6. Step 6: Final answer
    x = 112,019,719.28

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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.