Home / 90,102,747.13-135,147,070.25-25,403,938.81

Finding the Fourth Proportional to 90,102,747.13, 135,147,070.25 and 25,403,938.81

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Solution

The fourth proportional to 90,102,747.13, 135,147,070.25 and 25,403,938.81 is: 38,103,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,102,747.13 : 135,147,070.25 = 25,403,938.81 : x
  2. Step 2: Convert to fraction form
    90,102,747.13/135,147,070.25 = 25,403,938.81/x
  3. Step 3: Cross multiply
    90,102,747.13x = 135,147,070.25 × 25,403,938.81
  4. Step 4: Simplify right side
    90,102,747.13x = 3,433,267,902,612,149
  5. Step 5: Solve for x
    x = 3,433,267,902,612,149/90,102,747.13
  6. Step 6: Final answer
    x = 38,103,920.38

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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.