Home / 12,215,521.80-18,318,617.10-3,693,025.80

Finding the Fourth Proportional to 12,215,521.80, 18,318,617.10 and 3,693,025.80

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Solution

The fourth proportional to 12,215,521.80, 18,318,617.10 and 3,693,025.80 is: 5,538,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215,521.80 : 18,318,617.10 = 3,693,025.80 : x
  2. Step 2: Convert to fraction form
    12,215,521.80/18,318,617.10 = 3,693,025.80/x
  3. Step 3: Cross multiply
    12,215,521.80x = 18,318,617.10 × 3,693,025.80
  4. Step 4: Simplify right side
    12,215,521.80x = 67,651,125,570,621.18
  5. Step 5: Solve for x
    x = 67,651,125,570,621.18/12,215,521.80
  6. Step 6: Final answer
    x = 5,538,128.18

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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.