Home / 87,863,202.39-131,793,336.54-21,390,331.40

Finding the Fourth Proportional to 87,863,202.39, 131,793,336.54 and 21,390,331.40

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Solution

The fourth proportional to 87,863,202.39, 131,793,336.54 and 21,390,331.40 is: 32,085,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863,202.39 : 131,793,336.54 = 21,390,331.40 : x
  2. Step 2: Convert to fraction form
    87,863,202.39/131,793,336.54 = 21,390,331.40/x
  3. Step 3: Cross multiply
    87,863,202.39x = 131,793,336.54 × 21,390,331.40
  4. Step 4: Simplify right side
    87,863,202.39x = 2,819,103,144,243,363
  5. Step 5: Solve for x
    x = 2,819,103,144,243,363/87,863,202.39
  6. Step 6: Final answer
    x = 32,085,139.94

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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.