Home / 13,609,139.60-20,385,715.80-6,881,344.40

Finding the Fourth Proportional to 13,609,139.60, 20,385,715.80 and 6,881,344.40

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Solution

The fourth proportional to 13,609,139.60, 20,385,715.80 and 6,881,344.40 is: 10,307,861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,139.60 : 20,385,715.80 = 6,881,344.40 : x
  2. Step 2: Convert to fraction form
    13,609,139.60/20,385,715.80 = 6,881,344.40/x
  3. Step 3: Cross multiply
    13,609,139.60x = 20,385,715.80 × 6,881,344.40
  4. Step 4: Simplify right side
    13,609,139.60x = 140,281,131,260,321.53
  5. Step 5: Solve for x
    x = 140,281,131,260,321.53/13,609,139.60
  6. Step 6: Final answer
    x = 10,307,861.88

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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.