Home / 83,238,124.80-124,857,187.20-79,836,902.40

Finding the Fourth Proportional to 83,238,124.80, 124,857,187.20 and 79,836,902.40

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Solution

The fourth proportional to 83,238,124.80, 124,857,187.20 and 79,836,902.40 is: 119,755,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,238,124.80 : 124,857,187.20 = 79,836,902.40 : x
  2. Step 2: Convert to fraction form
    83,238,124.80/124,857,187.20 = 79,836,902.40/x
  3. Step 3: Cross multiply
    83,238,124.80x = 124,857,187.20 × 79,836,902.40
  4. Step 4: Simplify right side
    83,238,124.80x = 9,968,211,068,424,930
  5. Step 5: Solve for x
    x = 9,968,211,068,424,930/83,238,124.80
  6. Step 6: Final answer
    x = 119,755,353.60

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1.5x scale

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.