Home / 127,965,380.74-176,613,341.61-78,433,306.90

Finding the Fourth Proportional to 127,965,380.74, 176,613,341.61 and 78,433,306.90

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Solution

The fourth proportional to 127,965,380.74, 176,613,341.61 and 78,433,306.90 is: 108,250,906.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965,380.74 : 176,613,341.61 = 78,433,306.90 : x
  2. Step 2: Convert to fraction form
    127,965,380.74/176,613,341.61 = 78,433,306.90/x
  3. Step 3: Cross multiply
    127,965,380.74x = 176,613,341.61 × 78,433,306.90
  4. Step 4: Simplify right side
    127,965,380.74x = 13,852,368,425,131,672
  5. Step 5: Solve for x
    x = 13,852,368,425,131,672/127,965,380.74
  6. Step 6: Final answer
    x = 108,250,906.18

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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.