Home / 12,521,931.20-18,782,896.80-6,144,639.20

Finding the Fourth Proportional to 12,521,931.20, 18,782,896.80 and 6,144,639.20

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Solution

The fourth proportional to 12,521,931.20, 18,782,896.80 and 6,144,639.20 is: 9,216,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521,931.20 : 18,782,896.80 = 6,144,639.20 : x
  2. Step 2: Convert to fraction form
    12,521,931.20/18,782,896.80 = 6,144,639.20/x
  3. Step 3: Cross multiply
    12,521,931.20x = 18,782,896.80 × 6,144,639.20
  4. Step 4: Simplify right side
    12,521,931.20x = 115,414,123,966,834.56
  5. Step 5: Solve for x
    x = 115,414,123,966,834.56/12,521,931.20
  6. Step 6: Final answer
    x = 9,216,958.80

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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.