Home / 8,389,186.74-12,522,535.89-7,198,758.90

Finding the Fourth Proportional to 8,389,186.74, 12,522,535.89 and 7,198,758.90

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Solution

The fourth proportional to 8,389,186.74, 12,522,535.89 and 7,198,758.90 is: 10,745,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389,186.74 : 12,522,535.89 = 7,198,758.90 : x
  2. Step 2: Convert to fraction form
    8,389,186.74/12,522,535.89 = 7,198,758.90/x
  3. Step 3: Cross multiply
    8,389,186.74x = 12,522,535.89 × 7,198,758.90
  4. Step 4: Simplify right side
    8,389,186.74x = 90,146,716,688,706.94
  5. Step 5: Solve for x
    x = 90,146,716,688,706.94/8,389,186.74
  6. Step 6: Final answer
    x = 10,745,584.70

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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.