Home / 14,156,787.12-21,131,830.84-12,147,940.24

Finding the Fourth Proportional to 14,156,787.12, 21,131,830.84 and 12,147,940.24

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Solution

The fourth proportional to 14,156,787.12, 21,131,830.84 and 12,147,940.24 is: 18,133,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156,787.12 : 21,131,830.84 = 12,147,940.24 : x
  2. Step 2: Convert to fraction form
    14,156,787.12/21,131,830.84 = 12,147,940.24/x
  3. Step 3: Cross multiply
    14,156,787.12x = 21,131,830.84 × 12,147,940.24
  4. Step 4: Simplify right side
    14,156,787.12x = 256,708,218,206,109
  5. Step 5: Solve for x
    x = 256,708,218,206,109/14,156,787.12
  6. Step 6: Final answer
    x = 18,133,225.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.