Home / 140,480,929.25-193,857,572.86-77,753,287.28

Finding the Fourth Proportional to 140,480,929.25, 193,857,572.86 and 77,753,287.28

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Solution

The fourth proportional to 140,480,929.25, 193,857,572.86 and 77,753,287.28 is: 107,296,154.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,480,929.25 : 193,857,572.86 = 77,753,287.28 : x
  2. Step 2: Convert to fraction form
    140,480,929.25/193,857,572.86 = 77,753,287.28/x
  3. Step 3: Cross multiply
    140,480,929.25x = 193,857,572.86 × 77,753,287.28
  4. Step 4: Simplify right side
    140,480,929.25x = 15,073,063,553,987,112
  5. Step 5: Solve for x
    x = 15,073,063,553,987,112/140,480,929.25
  6. Step 6: Final answer
    x = 107,296,154.96

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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.