Home / 12,455,288.60-18,690,806.10-7,337,708.60

Finding the Fourth Proportional to 12,455,288.60, 18,690,806.10 and 7,337,708.60

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Solution

The fourth proportional to 12,455,288.60, 18,690,806.10 and 7,337,708.60 is: 11,011,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,288.60 : 18,690,806.10 = 7,337,708.60 : x
  2. Step 2: Convert to fraction form
    12,455,288.60/18,690,806.10 = 7,337,708.60/x
  3. Step 3: Cross multiply
    12,455,288.60x = 18,690,806.10 × 7,337,708.60
  4. Step 4: Simplify right side
    12,455,288.60x = 137,147,688,660,902.47
  5. Step 5: Solve for x
    x = 137,147,688,660,902.47/12,455,288.60
  6. Step 6: Final answer
    x = 11,011,201.19

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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.