Home / 13,381,439.80-20,162,116.75-12,103,472.04

Finding the Fourth Proportional to 13,381,439.80, 20,162,116.75 and 12,103,472.04

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Solution

The fourth proportional to 13,381,439.80, 20,162,116.75 and 12,103,472.04 is: 18,236,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381,439.80 : 20,162,116.75 = 12,103,472.04 : x
  2. Step 2: Convert to fraction form
    13,381,439.80/20,162,116.75 = 12,103,472.04/x
  3. Step 3: Cross multiply
    13,381,439.80x = 20,162,116.75 × 12,103,472.04
  4. Step 4: Simplify right side
    13,381,439.80x = 244,031,616,350,840.66
  5. Step 5: Solve for x
    x = 244,031,616,350,840.66/13,381,439.80
  6. Step 6: Final answer
    x = 18,236,573.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.