Home / 285,187,092.75-427,730,072.15-129,704,481.95

Finding the Fourth Proportional to 285,187,092.75, 427,730,072.15 and 129,704,481.95

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Solution

The fourth proportional to 285,187,092.75, 427,730,072.15 and 129,704,481.95 is: 194,533,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,187,092.75 : 427,730,072.15 = 129,704,481.95 : x
  2. Step 2: Convert to fraction form
    285,187,092.75/427,730,072.15 = 129,704,481.95/x
  3. Step 3: Cross multiply
    285,187,092.75x = 427,730,072.15 × 129,704,481.95
  4. Step 4: Simplify right side
    285,187,092.75x = 55,478,507,419,864,696
  5. Step 5: Solve for x
    x = 55,478,507,419,864,696/285,187,092.75
  6. Step 6: Final answer
    x = 194,533,724.81

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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.