Home / 71,386,380.90-98,514,661.38-38,793,432.42

Finding the Fourth Proportional to 71,386,380.90, 98,514,661.38 and 38,793,432.42

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Solution

The fourth proportional to 71,386,380.90, 98,514,661.38 and 38,793,432.42 is: 53,535,727.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,386,380.90 : 98,514,661.38 = 38,793,432.42 : x
  2. Step 2: Convert to fraction form
    71,386,380.90/98,514,661.38 = 38,793,432.42/x
  3. Step 3: Cross multiply
    71,386,380.90x = 98,514,661.38 × 38,793,432.42
  4. Step 4: Simplify right side
    71,386,380.90x = 3,821,721,858,624,214
  5. Step 5: Solve for x
    x = 3,821,721,858,624,214/71,386,380.90
  6. Step 6: Final answer
    x = 53,535,727.83

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1.5x scale

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.