Home / 12,945,670.40-19,423,171.20-12,479,110.40

Finding the Fourth Proportional to 12,945,670.40, 19,423,171.20 and 12,479,110.40

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Solution

The fourth proportional to 12,945,670.40, 19,423,171.20 and 12,479,110.40 is: 18,723,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945,670.40 : 19,423,171.20 = 12,479,110.40 : x
  2. Step 2: Convert to fraction form
    12,945,670.40/19,423,171.20 = 12,479,110.40/x
  3. Step 3: Cross multiply
    12,945,670.40x = 19,423,171.20 × 12,479,110.40
  4. Step 4: Simplify right side
    12,945,670.40x = 242,383,897,722,900.47
  5. Step 5: Solve for x
    x = 242,383,897,722,900.47/12,945,670.40
  6. Step 6: Final answer
    x = 18,723,163.05

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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.