Home / 20,702,134.80-28,569,063.12-12,005,470.92

Finding the Fourth Proportional to 20,702,134.80, 28,569,063.12 and 12,005,470.92

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Solution

The fourth proportional to 20,702,134.80, 28,569,063.12 and 12,005,470.92 is: 16,567,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,134.80 : 28,569,063.12 = 12,005,470.92 : x
  2. Step 2: Convert to fraction form
    20,702,134.80/28,569,063.12 = 12,005,470.92/x
  3. Step 3: Cross multiply
    20,702,134.80x = 28,569,063.12 × 12,005,470.92
  4. Step 4: Simplify right side
    20,702,134.80x = 342,985,056,498,804.50
  5. Step 5: Solve for x
    x = 342,985,056,498,804.50/20,702,134.80
  6. Step 6: Final answer
    x = 16,567,617.78

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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.