Home / 71,215,023.12-106,807,587.71-20,085,084.51

Finding the Fourth Proportional to 71,215,023.12, 106,807,587.71 and 20,085,084.51

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Solution

The fourth proportional to 71,215,023.12, 106,807,587.71 and 20,085,084.51 is: 30,123,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215,023.12 : 106,807,587.71 = 20,085,084.51 : x
  2. Step 2: Convert to fraction form
    71,215,023.12/106,807,587.71 = 20,085,084.51/x
  3. Step 3: Cross multiply
    71,215,023.12x = 106,807,587.71 × 20,085,084.51
  4. Step 4: Simplify right side
    71,215,023.12x = 2,145,239,425,364,162
  5. Step 5: Solve for x
    x = 2,145,239,425,364,162/71,215,023.12
  6. Step 6: Final answer
    x = 30,123,411.20

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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.