Home / 279,115,115.10-418,672,672.65-115,298,426.85

Finding the Fourth Proportional to 279,115,115.10, 418,672,672.65 and 115,298,426.85

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Solution

The fourth proportional to 279,115,115.10, 418,672,672.65 and 115,298,426.85 is: 172,947,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,115,115.10 : 418,672,672.65 = 115,298,426.85 : x
  2. Step 2: Convert to fraction form
    279,115,115.10/418,672,672.65 = 115,298,426.85/x
  3. Step 3: Cross multiply
    279,115,115.10x = 418,672,672.65 × 115,298,426.85
  4. Step 4: Simplify right side
    279,115,115.10x = 48,272,300,521,630,016
  5. Step 5: Solve for x
    x = 48,272,300,521,630,016/279,115,115.10
  6. Step 6: Final answer
    x = 172,947,640.28

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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.