Home / 83,196,982.20-124,782,876.18-21,787,421.88

Finding the Fourth Proportional to 83,196,982.20, 124,782,876.18 and 21,787,421.88

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Solution

The fourth proportional to 83,196,982.20, 124,782,876.18 and 21,787,421.88 is: 32,677,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,196,982.20 : 124,782,876.18 = 21,787,421.88 : x
  2. Step 2: Convert to fraction form
    83,196,982.20/124,782,876.18 = 21,787,421.88/x
  3. Step 3: Cross multiply
    83,196,982.20x = 124,782,876.18 × 21,787,421.88
  4. Step 4: Simplify right side
    83,196,982.20x = 2,718,697,166,733,463
  5. Step 5: Solve for x
    x = 2,718,697,166,733,463/83,196,982.20
  6. Step 6: Final answer
    x = 32,677,833.92

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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.