Home / 12,940,472.40-19,423,150.20-6,557,931.60

Finding the Fourth Proportional to 12,940,472.40, 19,423,150.20 and 6,557,931.60

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Solution

The fourth proportional to 12,940,472.40, 19,423,150.20 and 6,557,931.60 is: 9,843,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,472.40 : 19,423,150.20 = 6,557,931.60 : x
  2. Step 2: Convert to fraction form
    12,940,472.40/19,423,150.20 = 6,557,931.60/x
  3. Step 3: Cross multiply
    12,940,472.40x = 19,423,150.20 × 6,557,931.60
  4. Step 4: Simplify right side
    12,940,472.40x = 127,375,690,468,126.31
  5. Step 5: Solve for x
    x = 127,375,690,468,126.31/12,940,472.40
  6. Step 6: Final answer
    x = 9,843,202.51

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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.