Home / 11,240,436.78-15,512,086.22-6,891,920.79

Finding the Fourth Proportional to 11,240,436.78, 15,512,086.22 and 6,891,920.79

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Solution

The fourth proportional to 11,240,436.78, 15,512,086.22 and 6,891,920.79 is: 9,511,024.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240,436.78 : 15,512,086.22 = 6,891,920.79 : x
  2. Step 2: Convert to fraction form
    11,240,436.78/15,512,086.22 = 6,891,920.79/x
  3. Step 3: Cross multiply
    11,240,436.78x = 15,512,086.22 × 6,891,920.79
  4. Step 4: Simplify right side
    11,240,436.78x = 106,908,069,481,430.91
  5. Step 5: Solve for x
    x = 106,908,069,481,430.91/11,240,436.78
  6. Step 6: Final answer
    x = 9,511,024.49

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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.