Home / 12,452,557.70-18,678,836.55-11,974,260.80

Finding the Fourth Proportional to 12,452,557.70, 18,678,836.55 and 11,974,260.80

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Solution

The fourth proportional to 12,452,557.70, 18,678,836.55 and 11,974,260.80 is: 17,961,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452,557.70 : 18,678,836.55 = 11,974,260.80 : x
  2. Step 2: Convert to fraction form
    12,452,557.70/18,678,836.55 = 11,974,260.80/x
  3. Step 3: Cross multiply
    12,452,557.70x = 18,678,836.55 × 11,974,260.80
  4. Step 4: Simplify right side
    12,452,557.70x = 223,665,260,290,272.25
  5. Step 5: Solve for x
    x = 223,665,260,290,272.25/12,452,557.70
  6. Step 6: Final answer
    x = 17,961,391.20

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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.