Home / 13,439,908.80-20,159,863.20-12,117,211.20

Finding the Fourth Proportional to 13,439,908.80, 20,159,863.20 and 12,117,211.20

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Solution

The fourth proportional to 13,439,908.80, 20,159,863.20 and 12,117,211.20 is: 18,175,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,908.80 : 20,159,863.20 = 12,117,211.20 : x
  2. Step 2: Convert to fraction form
    13,439,908.80/20,159,863.20 = 12,117,211.20/x
  3. Step 3: Cross multiply
    13,439,908.80x = 20,159,863.20 × 12,117,211.20
  4. Step 4: Simplify right side
    13,439,908.80x = 244,281,320,157,507.81
  5. Step 5: Solve for x
    x = 244,281,320,157,507.81/13,439,908.80
  6. Step 6: Final answer
    x = 18,175,816.80

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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.