Home / 20,916,794.56-31,278,874.71-19,896,427.84

Finding the Fourth Proportional to 20,916,794.56, 31,278,874.71 and 19,896,427.84

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Solution

The fourth proportional to 20,916,794.56, 31,278,874.71 and 19,896,427.84 is: 29,753,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,794.56 : 31,278,874.71 = 19,896,427.84 : x
  2. Step 2: Convert to fraction form
    20,916,794.56/31,278,874.71 = 19,896,427.84/x
  3. Step 3: Cross multiply
    20,916,794.56x = 31,278,874.71 × 19,896,427.84
  4. Step 4: Simplify right side
    20,916,794.56x = 622,337,873,427,521.62
  5. Step 5: Solve for x
    x = 622,337,873,427,521.62/20,916,794.56
  6. Step 6: Final answer
    x = 29,753,023.19

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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.