Home / 86,508,049.20-129,762,073.80-80,797,354.80

Finding the Fourth Proportional to 86,508,049.20, 129,762,073.80 and 80,797,354.80

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Solution

The fourth proportional to 86,508,049.20, 129,762,073.80 and 80,797,354.80 is: 121,196,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,508,049.20 : 129,762,073.80 = 80,797,354.80 : x
  2. Step 2: Convert to fraction form
    86,508,049.20/129,762,073.80 = 80,797,354.80/x
  3. Step 3: Cross multiply
    86,508,049.20x = 129,762,073.80 × 80,797,354.80
  4. Step 4: Simplify right side
    86,508,049.20x = 10,484,432,316,402,384
  5. Step 5: Solve for x
    x = 10,484,432,316,402,384/86,508,049.20
  6. Step 6: Final answer
    x = 121,196,032.20

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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.