Home / 81,730,298.76-122,625,341.72-38,031,898.24

Finding the Fourth Proportional to 81,730,298.76, 122,625,341.72 and 38,031,898.24

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Solution

The fourth proportional to 81,730,298.76, 122,625,341.72 and 38,031,898.24 is: 57,061,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,730,298.76 : 122,625,341.72 = 38,031,898.24 : x
  2. Step 2: Convert to fraction form
    81,730,298.76/122,625,341.72 = 38,031,898.24/x
  3. Step 3: Cross multiply
    81,730,298.76x = 122,625,341.72 × 38,031,898.24
  4. Step 4: Simplify right side
    81,730,298.76x = 4,663,674,517,940,267
  5. Step 5: Solve for x
    x = 4,663,674,517,940,267/81,730,298.76
  6. Step 6: Final answer
    x = 57,061,757.86

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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.