Home / 12,105,921.80-18,158,882.70-4,429,551.80

Finding the Fourth Proportional to 12,105,921.80, 18,158,882.70 and 4,429,551.80

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Solution

The fourth proportional to 12,105,921.80, 18,158,882.70 and 4,429,551.80 is: 6,644,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105,921.80 : 18,158,882.70 = 4,429,551.80 : x
  2. Step 2: Convert to fraction form
    12,105,921.80/18,158,882.70 = 4,429,551.80/x
  3. Step 3: Cross multiply
    12,105,921.80x = 18,158,882.70 × 4,429,551.80
  4. Step 4: Simplify right side
    12,105,921.80x = 80,435,711,549,773.86
  5. Step 5: Solve for x
    x = 80,435,711,549,773.86/12,105,921.80
  6. Step 6: Final answer
    x = 6,644,327.70

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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.