Home / 125,131,645.52-187,805,527.92-86,820,063.80

Finding the Fourth Proportional to 125,131,645.52, 187,805,527.92 and 86,820,063.80

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Solution

The fourth proportional to 125,131,645.52, 187,805,527.92 and 86,820,063.80 is: 130,305,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,131,645.52 : 187,805,527.92 = 86,820,063.80 : x
  2. Step 2: Convert to fraction form
    125,131,645.52/187,805,527.92 = 86,820,063.80/x
  3. Step 3: Cross multiply
    125,131,645.52x = 187,805,527.92 × 86,820,063.80
  4. Step 4: Simplify right side
    125,131,645.52x = 16,305,287,916,007,080
  5. Step 5: Solve for x
    x = 16,305,287,916,007,080/125,131,645.52
  6. Step 6: Final answer
    x = 130,305,070.70

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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.