Home / 20,509,018.80-30,761,195.40-5,364,481.20

Finding the Fourth Proportional to 20,509,018.80, 30,761,195.40 and 5,364,481.20

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Solution

The fourth proportional to 20,509,018.80, 30,761,195.40 and 5,364,481.20 is: 8,046,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509,018.80 : 30,761,195.40 = 5,364,481.20 : x
  2. Step 2: Convert to fraction form
    20,509,018.80/30,761,195.40 = 5,364,481.20/x
  3. Step 3: Cross multiply
    20,509,018.80x = 30,761,195.40 × 5,364,481.20
  4. Step 4: Simplify right side
    20,509,018.80x = 165,017,854,412,826.47
  5. Step 5: Solve for x
    x = 165,017,854,412,826.47/20,509,018.80
  6. Step 6: Final answer
    x = 8,046,111.62

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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.