Home / 82,677,920.40-124,016,880.60-28,152,073.80

Finding the Fourth Proportional to 82,677,920.40, 124,016,880.60 and 28,152,073.80

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Solution

The fourth proportional to 82,677,920.40, 124,016,880.60 and 28,152,073.80 is: 42,228,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,677,920.40 : 124,016,880.60 = 28,152,073.80 : x
  2. Step 2: Convert to fraction form
    82,677,920.40/124,016,880.60 = 28,152,073.80/x
  3. Step 3: Cross multiply
    82,677,920.40x = 124,016,880.60 × 28,152,073.80
  4. Step 4: Simplify right side
    82,677,920.40x = 3,491,332,375,096,988
  5. Step 5: Solve for x
    x = 3,491,332,375,096,988/82,677,920.40
  6. Step 6: Final answer
    x = 42,228,110.70

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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.