Home / 21,340,257.72-32,016,378.96-8,569,729.68

Finding the Fourth Proportional to 21,340,257.72, 32,016,378.96 and 8,569,729.68

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Solution

The fourth proportional to 21,340,257.72, 32,016,378.96 and 8,569,729.68 is: 12,857,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340,257.72 : 32,016,378.96 = 8,569,729.68 : x
  2. Step 2: Convert to fraction form
    21,340,257.72/32,016,378.96 = 8,569,729.68/x
  3. Step 3: Cross multiply
    21,340,257.72x = 32,016,378.96 × 8,569,729.68
  4. Step 4: Simplify right side
    21,340,257.72x = 274,371,713,019,639.53
  5. Step 5: Solve for x
    x = 274,371,713,019,639.53/21,340,257.72
  6. Step 6: Final answer
    x = 12,857,000.91

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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.