Home / 15,216,871.32-20,999,538.27-8,247,769.83

Finding the Fourth Proportional to 15,216,871.32, 20,999,538.27 and 8,247,769.83

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Solution

The fourth proportional to 15,216,871.32, 20,999,538.27 and 8,247,769.83 is: 11,382,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,871.32 : 20,999,538.27 = 8,247,769.83 : x
  2. Step 2: Convert to fraction form
    15,216,871.32/20,999,538.27 = 8,247,769.83/x
  3. Step 3: Cross multiply
    15,216,871.32x = 20,999,538.27 × 8,247,769.83
  4. Step 4: Simplify right side
    15,216,871.32x = 173,199,358,187,236.41
  5. Step 5: Solve for x
    x = 173,199,358,187,236.41/15,216,871.32
  6. Step 6: Final answer
    x = 11,382,061.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.