Home / 20,702,104.24-28,569,020.88-12,005,440.42

Finding the Fourth Proportional to 20,702,104.24, 28,569,020.88 and 12,005,440.42

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Solution

The fourth proportional to 20,702,104.24, 28,569,020.88 and 12,005,440.42 is: 16,567,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,104.24 : 28,569,020.88 = 12,005,440.42 : x
  2. Step 2: Convert to fraction form
    20,702,104.24/28,569,020.88 = 12,005,440.42/x
  3. Step 3: Cross multiply
    20,702,104.24x = 28,569,020.88 × 12,005,440.42
  4. Step 4: Simplify right side
    20,702,104.24x = 342,983,678,032,575.94
  5. Step 5: Solve for x
    x = 342,983,678,032,575.94/20,702,104.24
  6. Step 6: Final answer
    x = 16,567,575.65

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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.