Home / 20,803,006.72-31,205,879.28-5,450,672.32

Finding the Fourth Proportional to 20,803,006.72, 31,205,879.28 and 5,450,672.32

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Solution

The fourth proportional to 20,803,006.72, 31,205,879.28 and 5,450,672.32 is: 8,176,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,006.72 : 31,205,879.28 = 5,450,672.32 : x
  2. Step 2: Convert to fraction form
    20,803,006.72/31,205,879.28 = 5,450,672.32/x
  3. Step 3: Cross multiply
    20,803,006.72x = 31,205,879.28 × 5,450,672.32
  4. Step 4: Simplify right side
    20,803,006.72x = 170,093,022,412,757.53
  5. Step 5: Solve for x
    x = 170,093,022,412,757.53/20,803,006.72
  6. Step 6: Final answer
    x = 8,176,367.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.