Home / 42,109,956.88-63,170,966.54-12,966,267.04

Finding the Fourth Proportional to 42,109,956.88, 63,170,966.54 and 12,966,267.04

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Solution

The fourth proportional to 42,109,956.88, 63,170,966.54 and 12,966,267.04 is: 19,451,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,109,956.88 : 63,170,966.54 = 12,966,267.04 : x
  2. Step 2: Convert to fraction form
    42,109,956.88/63,170,966.54 = 12,966,267.04/x
  3. Step 3: Cross multiply
    42,109,956.88x = 63,170,966.54 × 12,966,267.04
  4. Step 4: Simplify right side
    42,109,956.88x = 819,091,621,332,544.75
  5. Step 5: Solve for x
    x = 819,091,621,332,544.75/42,109,956.88
  6. Step 6: Final answer
    x = 19,451,257.66

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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.