Home / 12,366,928.10-18,541,534.80-5,174,759.90

Finding the Fourth Proportional to 12,366,928.10, 18,541,534.80 and 5,174,759.90

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Solution

The fourth proportional to 12,366,928.10, 18,541,534.80 and 5,174,759.90 is: 7,758,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366,928.10 : 18,541,534.80 = 5,174,759.90 : x
  2. Step 2: Convert to fraction form
    12,366,928.10/18,541,534.80 = 5,174,759.90/x
  3. Step 3: Cross multiply
    12,366,928.10x = 18,541,534.80 × 5,174,759.90
  4. Step 4: Simplify right side
    12,366,928.10x = 95,947,990,767,494.53
  5. Step 5: Solve for x
    x = 95,947,990,767,494.53/12,366,928.10
  6. Step 6: Final answer
    x = 7,758,433.62

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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.