Home / 20,737,263.40-31,105,895.10-9,378,082.60

Finding the Fourth Proportional to 20,737,263.40, 31,105,895.10 and 9,378,082.60

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Solution

The fourth proportional to 20,737,263.40, 31,105,895.10 and 9,378,082.60 is: 14,067,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737,263.40 : 31,105,895.10 = 9,378,082.60 : x
  2. Step 2: Convert to fraction form
    20,737,263.40/31,105,895.10 = 9,378,082.60/x
  3. Step 3: Cross multiply
    20,737,263.40x = 31,105,895.10 × 9,378,082.60
  4. Step 4: Simplify right side
    20,737,263.40x = 291,713,653,594,735.25
  5. Step 5: Solve for x
    x = 291,713,653,594,735.25/20,737,263.40
  6. Step 6: Final answer
    x = 14,067,123.90

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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.