Home / 9,278,418.24-12,798,557.28-6,138,676.80

Finding the Fourth Proportional to 9,278,418.24, 12,798,557.28 and 6,138,676.80

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Solution

The fourth proportional to 9,278,418.24, 12,798,557.28 and 6,138,676.80 is: 8,467,629.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278,418.24 : 12,798,557.28 = 6,138,676.80 : x
  2. Step 2: Convert to fraction form
    9,278,418.24/12,798,557.28 = 6,138,676.80/x
  3. Step 3: Cross multiply
    9,278,418.24x = 12,798,557.28 × 6,138,676.80
  4. Step 4: Simplify right side
    9,278,418.24x = 78,566,206,648,207.09
  5. Step 5: Solve for x
    x = 78,566,206,648,207.09/9,278,418.24
  6. Step 6: Final answer
    x = 8,467,629.35

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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.