Home / 20,923,315.20-28,874,200.32-11,755,952.64

Finding the Fourth Proportional to 20,923,315.20, 28,874,200.32 and 11,755,952.64

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Solution

The fourth proportional to 20,923,315.20, 28,874,200.32 and 11,755,952.64 is: 16,223,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923,315.20 : 28,874,200.32 = 11,755,952.64 : x
  2. Step 2: Convert to fraction form
    20,923,315.20/28,874,200.32 = 11,755,952.64/x
  3. Step 3: Cross multiply
    20,923,315.20x = 28,874,200.32 × 11,755,952.64
  4. Step 4: Simplify right side
    20,923,315.20x = 339,443,731,479,792.88
  5. Step 5: Solve for x
    x = 339,443,731,479,792.88/20,923,315.20
  6. Step 6: Final answer
    x = 16,223,228.88

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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.