Home / 28,342,534.80-42,517,949.40-9,170,029.20

Finding the Fourth Proportional to 28,342,534.80, 42,517,949.40 and 9,170,029.20

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Solution

The fourth proportional to 28,342,534.80, 42,517,949.40 and 9,170,029.20 is: 13,756,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,534.80 : 42,517,949.40 = 9,170,029.20 : x
  2. Step 2: Convert to fraction form
    28,342,534.80/42,517,949.40 = 9,170,029.20/x
  3. Step 3: Cross multiply
    28,342,534.80x = 42,517,949.40 × 9,170,029.20
  4. Step 4: Simplify right side
    28,342,534.80x = 389,890,837,522,122.44
  5. Step 5: Solve for x
    x = 389,890,837,522,122.44/28,342,534.80
  6. Step 6: Final answer
    x = 13,756,385.60

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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.