Home / 66,533,542.76-99,809,772.92-20,479,252.98

Finding the Fourth Proportional to 66,533,542.76, 99,809,772.92 and 20,479,252.98

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Solution

The fourth proportional to 66,533,542.76, 99,809,772.92 and 20,479,252.98 is: 30,721,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,533,542.76 : 99,809,772.92 = 20,479,252.98 : x
  2. Step 2: Convert to fraction form
    66,533,542.76/99,809,772.92 = 20,479,252.98/x
  3. Step 3: Cross multiply
    66,533,542.76x = 99,809,772.92 × 20,479,252.98
  4. Step 4: Simplify right side
    66,533,542.76x = 2,044,029,589,853,721
  5. Step 5: Solve for x
    x = 2,044,029,589,853,721/66,533,542.76
  6. Step 6: Final answer
    x = 30,721,790.92

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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.