Home / 12,452,557.20-18,678,835.80-11,974,260.30

Finding the Fourth Proportional to 12,452,557.20, 18,678,835.80 and 11,974,260.30

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Solution

The fourth proportional to 12,452,557.20, 18,678,835.80 and 11,974,260.30 is: 17,961,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452,557.20 : 18,678,835.80 = 11,974,260.30 : x
  2. Step 2: Convert to fraction form
    12,452,557.20/18,678,835.80 = 11,974,260.30/x
  3. Step 3: Cross multiply
    12,452,557.20x = 18,678,835.80 × 11,974,260.30
  4. Step 4: Simplify right side
    12,452,557.20x = 223,665,241,970,158.75
  5. Step 5: Solve for x
    x = 223,665,241,970,158.75/12,452,557.20
  6. Step 6: Final answer
    x = 17,961,390.45

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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.