Home / 66,456,032.80-99,684,049.20-39,134,279.20

Finding the Fourth Proportional to 66,456,032.80, 99,684,049.20 and 39,134,279.20

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Solution

The fourth proportional to 66,456,032.80, 99,684,049.20 and 39,134,279.20 is: 58,701,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456,032.80 : 99,684,049.20 = 39,134,279.20 : x
  2. Step 2: Convert to fraction form
    66,456,032.80/99,684,049.20 = 39,134,279.20/x
  3. Step 3: Cross multiply
    66,456,032.80x = 99,684,049.20 × 39,134,279.20
  4. Step 4: Simplify right side
    66,456,032.80x = 3,901,063,413,179,337
  5. Step 5: Solve for x
    x = 3,901,063,413,179,337/66,456,032.80
  6. Step 6: Final answer
    x = 58,701,418.80

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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.