Home / 287,976,882.52-397,407,841.08-162,555,478.12

Finding the Fourth Proportional to 287,976,882.52, 397,407,841.08 and 162,555,478.12

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Solution

The fourth proportional to 287,976,882.52, 397,407,841.08 and 162,555,478.12 is: 224,326,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,976,882.52 : 397,407,841.08 = 162,555,478.12 : x
  2. Step 2: Convert to fraction form
    287,976,882.52/397,407,841.08 = 162,555,478.12/x
  3. Step 3: Cross multiply
    287,976,882.52x = 397,407,841.08 × 162,555,478.12
  4. Step 4: Simplify right side
    287,976,882.52x = 64,600,821,615,396,376
  5. Step 5: Solve for x
    x = 64,600,821,615,396,376/287,976,882.52
  6. Step 6: Final answer
    x = 224,326,414.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.