Home / 8,086,729.60-12,096,916.80-7,290,467.20

Finding the Fourth Proportional to 8,086,729.60, 12,096,916.80 and 7,290,467.20

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Solution

The fourth proportional to 8,086,729.60, 12,096,916.80 and 7,290,467.20 is: 10,905,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086,729.60 : 12,096,916.80 = 7,290,467.20 : x
  2. Step 2: Convert to fraction form
    8,086,729.60/12,096,916.80 = 7,290,467.20/x
  3. Step 3: Cross multiply
    8,086,729.60x = 12,096,916.80 × 7,290,467.20
  4. Step 4: Simplify right side
    8,086,729.60x = 88,192,175,151,528.97
  5. Step 5: Solve for x
    x = 88,192,175,151,528.97/8,086,729.60
  6. Step 6: Final answer
    x = 10,905,790.04

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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.