Home / 381,358,044.12-572,042,381.22-108,728,811.48

Finding the Fourth Proportional to 381,358,044.12, 572,042,381.22 and 108,728,811.48

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Solution

The fourth proportional to 381,358,044.12, 572,042,381.22 and 108,728,811.48 is: 163,094,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,358,044.12 : 572,042,381.22 = 108,728,811.48 : x
  2. Step 2: Convert to fraction form
    381,358,044.12/572,042,381.22 = 108,728,811.48/x
  3. Step 3: Cross multiply
    381,358,044.12x = 572,042,381.22 × 108,728,811.48
  4. Step 4: Simplify right side
    381,358,044.12x = 62,197,488,226,239,680
  5. Step 5: Solve for x
    x = 62,197,488,226,239,680/381,358,044.12
  6. Step 6: Final answer
    x = 163,094,732.59

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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.