Home / 10,781,209.39-16,172,142.38-4,215,656.16

Finding the Fourth Proportional to 10,781,209.39, 16,172,142.38 and 4,215,656.16

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Solution

The fourth proportional to 10,781,209.39, 16,172,142.38 and 4,215,656.16 is: 6,323,612.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781,209.39 : 16,172,142.38 = 4,215,656.16 : x
  2. Step 2: Convert to fraction form
    10,781,209.39/16,172,142.38 = 4,215,656.16/x
  3. Step 3: Cross multiply
    10,781,209.39x = 16,172,142.38 × 4,215,656.16
  4. Step 4: Simplify right side
    10,781,209.39x = 68,176,191,695,613.55
  5. Step 5: Solve for x
    x = 68,176,191,695,613.55/10,781,209.39
  6. Step 6: Final answer
    x = 6,323,612.61

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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.