Home / 13,385,477.76-18,474,641.28-7,951,920

Finding the Fourth Proportional to 13,385,477.76, 18,474,641.28 and 7,951,920

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Solution

The fourth proportional to 13,385,477.76, 18,474,641.28 and 7,951,920 is: 10,975,242.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385,477.76 : 18,474,641.28 = 7,951,920 : x
  2. Step 2: Convert to fraction form
    13,385,477.76/18,474,641.28 = 7,951,920/x
  3. Step 3: Cross multiply
    13,385,477.76x = 18,474,641.28 × 7,951,920
  4. Step 4: Simplify right side
    13,385,477.76x = 146,908,869,487,257.62
  5. Step 5: Solve for x
    x = 146,908,869,487,257.62/13,385,477.76
  6. Step 6: Final answer
    x = 10,975,242.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.