Home / 84,394,160.40-126,613,965.24-43,431,278.61

Finding the Fourth Proportional to 84,394,160.40, 126,613,965.24 and 43,431,278.61

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Solution

The fourth proportional to 84,394,160.40, 126,613,965.24 and 43,431,278.61 is: 65,158,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,394,160.40 : 126,613,965.24 = 43,431,278.61 : x
  2. Step 2: Convert to fraction form
    84,394,160.40/126,613,965.24 = 43,431,278.61/x
  3. Step 3: Cross multiply
    84,394,160.40x = 126,613,965.24 × 43,431,278.61
  4. Step 4: Simplify right side
    84,394,160.40x = 5,499,006,400,038,139
  5. Step 5: Solve for x
    x = 5,499,006,400,038,139/84,394,160.40
  6. Step 6: Final answer
    x = 65,158,612.56

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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.