Home / 5,138,247.22-7,090,780.90-2,815,227.78

Finding the Fourth Proportional to 5,138,247.22, 7,090,780.90 and 2,815,227.78

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Solution

The fourth proportional to 5,138,247.22, 7,090,780.90 and 2,815,227.78 is: 3,885,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138,247.22 : 7,090,780.90 = 2,815,227.78 : x
  2. Step 2: Convert to fraction form
    5,138,247.22/7,090,780.90 = 2,815,227.78/x
  3. Step 3: Cross multiply
    5,138,247.22x = 7,090,780.90 × 2,815,227.78
  4. Step 4: Simplify right side
    5,138,247.22x = 19,962,163,371,573.40
  5. Step 5: Solve for x
    x = 19,962,163,371,573.40/5,138,247.22
  6. Step 6: Final answer
    x = 3,885,014.19

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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.