Home / 28,915,843.20-43,373,764.80-15,926,812.80

Finding the Fourth Proportional to 28,915,843.20, 43,373,764.80 and 15,926,812.80

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Solution

The fourth proportional to 28,915,843.20, 43,373,764.80 and 15,926,812.80 is: 23,890,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915,843.20 : 43,373,764.80 = 15,926,812.80 : x
  2. Step 2: Convert to fraction form
    28,915,843.20/43,373,764.80 = 15,926,812.80/x
  3. Step 3: Cross multiply
    28,915,843.20x = 43,373,764.80 × 15,926,812.80
  4. Step 4: Simplify right side
    28,915,843.20x = 690,805,832,400,829.38
  5. Step 5: Solve for x
    x = 690,805,832,400,829.38/28,915,843.20
  6. Step 6: Final answer
    x = 23,890,219.20

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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.