Home / 8,389,185.74-12,522,534.40-7,198,757.90

Finding the Fourth Proportional to 8,389,185.74, 12,522,534.40 and 7,198,757.90

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Solution

The fourth proportional to 8,389,185.74, 12,522,534.40 and 7,198,757.90 is: 10,745,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389,185.74 : 12,522,534.40 = 7,198,757.90 : x
  2. Step 2: Convert to fraction form
    8,389,185.74/12,522,534.40 = 7,198,757.90/x
  3. Step 3: Cross multiply
    8,389,185.74x = 12,522,534.40 × 7,198,757.90
  4. Step 4: Simplify right side
    8,389,185.74x = 90,146,693,440,021.77
  5. Step 5: Solve for x
    x = 90,146,693,440,021.77/8,389,185.74
  6. Step 6: Final answer
    x = 10,745,583.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.