Home / 12,264,821.80-18,397,232.70-8,438,446.60

Finding the Fourth Proportional to 12,264,821.80, 18,397,232.70 and 8,438,446.60

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Solution

The fourth proportional to 12,264,821.80, 18,397,232.70 and 8,438,446.60 is: 12,657,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,264,821.80 : 18,397,232.70 = 8,438,446.60 : x
  2. Step 2: Convert to fraction form
    12,264,821.80/18,397,232.70 = 8,438,446.60/x
  3. Step 3: Cross multiply
    12,264,821.80x = 18,397,232.70 × 8,438,446.60
  4. Step 4: Simplify right side
    12,264,821.80x = 155,244,065,726,723.81
  5. Step 5: Solve for x
    x = 155,244,065,726,723.81/12,264,821.80
  6. Step 6: Final answer
    x = 12,657,669.90

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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.