Home / 91,404,712.40-126,138,489.42-52,247,329.92

Finding the Fourth Proportional to 91,404,712.40, 126,138,489.42 and 52,247,329.92

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Solution

The fourth proportional to 91,404,712.40, 126,138,489.42 and 52,247,329.92 is: 72,101,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,404,712.40 : 126,138,489.42 = 52,247,329.92 : x
  2. Step 2: Convert to fraction form
    91,404,712.40/126,138,489.42 = 52,247,329.92/x
  3. Step 3: Cross multiply
    91,404,712.40x = 126,138,489.42 × 52,247,329.92
  4. Step 4: Simplify right side
    91,404,712.40x = 6,590,399,272,337,170
  5. Step 5: Solve for x
    x = 6,590,399,272,337,170/91,404,712.40
  6. Step 6: Final answer
    x = 72,101,307.46

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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.