Home / 28,053,117.60-42,008,817.60-18,416,320.80

Finding the Fourth Proportional to 28,053,117.60, 42,008,817.60 and 18,416,320.80

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Solution

The fourth proportional to 28,053,117.60, 42,008,817.60 and 18,416,320.80 is: 27,577,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053,117.60 : 42,008,817.60 = 18,416,320.80 : x
  2. Step 2: Convert to fraction form
    28,053,117.60/42,008,817.60 = 18,416,320.80/x
  3. Step 3: Cross multiply
    28,053,117.60x = 42,008,817.60 × 18,416,320.80
  4. Step 4: Simplify right side
    28,053,117.60x = 773,647,861,350,286.12
  5. Step 5: Solve for x
    x = 773,647,861,350,286.12/28,053,117.60
  6. Step 6: Final answer
    x = 27,577,963.79

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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.