Home / 12,226,639.79-18,338,835.20-4,138,690.97

Finding the Fourth Proportional to 12,226,639.79, 18,338,835.20 and 4,138,690.97

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Solution

The fourth proportional to 12,226,639.79, 18,338,835.20 and 4,138,690.97 is: 6,207,655.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226,639.79 : 18,338,835.20 = 4,138,690.97 : x
  2. Step 2: Convert to fraction form
    12,226,639.79/18,338,835.20 = 4,138,690.97/x
  3. Step 3: Cross multiply
    12,226,639.79x = 18,338,835.20 × 4,138,690.97
  4. Step 4: Simplify right side
    12,226,639.79x = 75,898,771,667,711.78
  5. Step 5: Solve for x
    x = 75,898,771,667,711.78/12,226,639.79
  6. Step 6: Final answer
    x = 6,207,655.82

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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.