Home / 118,098,309.20-177,147,463.80-72,181,806.80

Finding the Fourth Proportional to 118,098,309.20, 177,147,463.80 and 72,181,806.80

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Solution

The fourth proportional to 118,098,309.20, 177,147,463.80 and 72,181,806.80 is: 108,272,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,309.20 : 177,147,463.80 = 72,181,806.80 : x
  2. Step 2: Convert to fraction form
    118,098,309.20/177,147,463.80 = 72,181,806.80/x
  3. Step 3: Cross multiply
    118,098,309.20x = 177,147,463.80 × 72,181,806.80
  4. Step 4: Simplify right side
    118,098,309.20x = 12,786,824,007,121,594
  5. Step 5: Solve for x
    x = 12,786,824,007,121,594/118,098,309.20
  6. Step 6: Final answer
    x = 108,272,710.20

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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.