Home / 10,502,680.32-15,747,721.92-4,815,780.48

Finding the Fourth Proportional to 10,502,680.32, 15,747,721.92 and 4,815,780.48

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Solution

The fourth proportional to 10,502,680.32, 15,747,721.92 and 4,815,780.48 is: 7,220,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,680.32 : 15,747,721.92 = 4,815,780.48 : x
  2. Step 2: Convert to fraction form
    10,502,680.32/15,747,721.92 = 4,815,780.48/x
  3. Step 3: Cross multiply
    10,502,680.32x = 15,747,721.92 × 4,815,780.48
  4. Step 4: Simplify right side
    10,502,680.32x = 75,837,571,826,804.12
  5. Step 5: Solve for x
    x = 75,837,571,826,804.12/10,502,680.32
  6. Step 6: Final answer
    x = 7,220,782.65

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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.