Home / 20,341,253.07-28,071,155.06-11,970,472.97

Finding the Fourth Proportional to 20,341,253.07, 28,071,155.06 and 11,970,472.97

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Solution

The fourth proportional to 20,341,253.07, 28,071,155.06 and 11,970,472.97 is: 16,519,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341,253.07 : 28,071,155.06 = 11,970,472.97 : x
  2. Step 2: Convert to fraction form
    20,341,253.07/28,071,155.06 = 11,970,472.97/x
  3. Step 3: Cross multiply
    20,341,253.07x = 28,071,155.06 × 11,970,472.97
  4. Step 4: Simplify right side
    20,341,253.07x = 336,025,002,682,200.56
  5. Step 5: Solve for x
    x = 336,025,002,682,200.56/20,341,253.07
  6. Step 6: Final answer
    x = 16,519,385.58

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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.