Home / 84,581,645.60-126,872,468.40-57,707,789.60

Finding the Fourth Proportional to 84,581,645.60, 126,872,468.40 and 57,707,789.60

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Solution

The fourth proportional to 84,581,645.60, 126,872,468.40 and 57,707,789.60 is: 86,561,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,581,645.60 : 126,872,468.40 = 57,707,789.60 : x
  2. Step 2: Convert to fraction form
    84,581,645.60/126,872,468.40 = 57,707,789.60/x
  3. Step 3: Cross multiply
    84,581,645.60x = 126,872,468.40 × 57,707,789.60
  4. Step 4: Simplify right side
    84,581,645.60x = 7,321,529,712,459,849
  5. Step 5: Solve for x
    x = 7,321,529,712,459,849/84,581,645.60
  6. Step 6: Final answer
    x = 86,561,684.40

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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.