Home / 71,215,022.87-106,807,587.33-20,085,084.26

Finding the Fourth Proportional to 71,215,022.87, 106,807,587.33 and 20,085,084.26

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Solution

The fourth proportional to 71,215,022.87, 106,807,587.33 and 20,085,084.26 is: 30,123,410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215,022.87 : 106,807,587.33 = 20,085,084.26 : x
  2. Step 2: Convert to fraction form
    71,215,022.87/106,807,587.33 = 20,085,084.26/x
  3. Step 3: Cross multiply
    71,215,022.87x = 106,807,587.33 × 20,085,084.26
  4. Step 4: Simplify right side
    71,215,022.87x = 2,145,239,391,130,358.50
  5. Step 5: Solve for x
    x = 2,145,239,391,130,358.50/71,215,022.87
  6. Step 6: Final answer
    x = 30,123,410.83

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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.