Home / 28,193,428.80-42,290,143.20-27,815,515.20

Finding the Fourth Proportional to 28,193,428.80, 42,290,143.20 and 27,815,515.20

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Solution

The fourth proportional to 28,193,428.80, 42,290,143.20 and 27,815,515.20 is: 41,723,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193,428.80 : 42,290,143.20 = 27,815,515.20 : x
  2. Step 2: Convert to fraction form
    28,193,428.80/42,290,143.20 = 27,815,515.20/x
  3. Step 3: Cross multiply
    28,193,428.80x = 42,290,143.20 × 27,815,515.20
  4. Step 4: Simplify right side
    28,193,428.80x = 1,176,322,120,989,776.75
  5. Step 5: Solve for x
    x = 1,176,322,120,989,776.75/28,193,428.80
  6. Step 6: Final answer
    x = 41,723,272.80

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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.