Home / 20,834,216.32-28,761,187.32-13,876,472.80

Finding the Fourth Proportional to 20,834,216.32, 28,761,187.32 and 13,876,472.80

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Solution

The fourth proportional to 20,834,216.32, 28,761,187.32 and 13,876,472.80 is: 19,156,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834,216.32 : 28,761,187.32 = 13,876,472.80 : x
  2. Step 2: Convert to fraction form
    20,834,216.32/28,761,187.32 = 13,876,472.80/x
  3. Step 3: Cross multiply
    20,834,216.32x = 28,761,187.32 × 13,876,472.80
  4. Step 4: Simplify right side
    20,834,216.32x = 399,103,833,541,684.94
  5. Step 5: Solve for x
    x = 399,103,833,541,684.94/20,834,216.32
  6. Step 6: Final answer
    x = 19,156,172.11

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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.