Home / 206,335,964.28-284,625,385.74-128,939,259

Finding the Fourth Proportional to 206,335,964.28, 284,625,385.74 and 128,939,259

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Solution

The fourth proportional to 206,335,964.28, 284,625,385.74 and 128,939,259 is: 177,862,286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,335,964.28 : 284,625,385.74 = 128,939,259 : x
  2. Step 2: Convert to fraction form
    206,335,964.28/284,625,385.74 = 128,939,259/x
  3. Step 3: Cross multiply
    206,335,964.28x = 284,625,385.74 × 128,939,259
  4. Step 4: Simplify right side
    206,335,964.28x = 36,699,386,329,904,768
  5. Step 5: Solve for x
    x = 36,699,386,329,904,768/206,335,964.28
  6. Step 6: Final answer
    x = 177,862,286.19

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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.