Home / 8,005,209.78-11,992,747.59-3,956,958.84

Finding the Fourth Proportional to 8,005,209.78, 11,992,747.59 and 3,956,958.84

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Solution

The fourth proportional to 8,005,209.78, 11,992,747.59 and 3,956,958.84 is: 5,927,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005,209.78 : 11,992,747.59 = 3,956,958.84 : x
  2. Step 2: Convert to fraction form
    8,005,209.78/11,992,747.59 = 3,956,958.84/x
  3. Step 3: Cross multiply
    8,005,209.78x = 11,992,747.59 × 3,956,958.84
  4. Step 4: Simplify right side
    8,005,209.78x = 47,454,808,592,139.20
  5. Step 5: Solve for x
    x = 47,454,808,592,139.20/8,005,209.78
  6. Step 6: Final answer
    x = 5,927,990.63

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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.