Home / 84,222,778.25-126,315,068.63-38,134,221.83

Finding the Fourth Proportional to 84,222,778.25, 126,315,068.63 and 38,134,221.83

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Solution

The fourth proportional to 84,222,778.25, 126,315,068.63 and 38,134,221.83 is: 57,192,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,222,778.25 : 126,315,068.63 = 38,134,221.83 : x
  2. Step 2: Convert to fraction form
    84,222,778.25/126,315,068.63 = 38,134,221.83/x
  3. Step 3: Cross multiply
    84,222,778.25x = 126,315,068.63 × 38,134,221.83
  4. Step 4: Simplify right side
    84,222,778.25x = 4,816,926,847,259,529
  5. Step 5: Solve for x
    x = 4,816,926,847,259,529/84,222,778.25
  6. Step 6: Final answer
    x = 57,192,685.25

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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.