Home / 381,358,045.12-572,042,382.72-108,728,812.48

Finding the Fourth Proportional to 381,358,045.12, 572,042,382.72 and 108,728,812.48

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Solution

The fourth proportional to 381,358,045.12, 572,042,382.72 and 108,728,812.48 is: 163,094,734.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,358,045.12 : 572,042,382.72 = 108,728,812.48 : x
  2. Step 2: Convert to fraction form
    381,358,045.12/572,042,382.72 = 108,728,812.48/x
  3. Step 3: Cross multiply
    381,358,045.12x = 572,042,382.72 × 108,728,812.48
  4. Step 4: Simplify right side
    381,358,045.12x = 62,197,488,961,375,280
  5. Step 5: Solve for x
    x = 62,197,488,961,375,280/381,358,045.12
  6. Step 6: Final answer
    x = 163,094,734.09

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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.