Home / 99,613,724.60-137,414,661.90-81,049,626.20

Finding the Fourth Proportional to 99,613,724.60, 137,414,661.90 and 81,049,626.20

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Solution

The fourth proportional to 99,613,724.60, 137,414,661.90 and 81,049,626.20 is: 111,805,948.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,613,724.60 : 137,414,661.90 = 81,049,626.20 : x
  2. Step 2: Convert to fraction form
    99,613,724.60/137,414,661.90 = 81,049,626.20/x
  3. Step 3: Cross multiply
    99,613,724.60x = 137,414,661.90 × 81,049,626.20
  4. Step 4: Simplify right side
    99,613,724.60x = 11,137,406,981,394,382
  5. Step 5: Solve for x
    x = 11,137,406,981,394,382/99,613,724.60
  6. Step 6: Final answer
    x = 111,805,948.69

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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.