Home / 81,735,272.88-122,660,371.72-73,920,653.55

Finding the Fourth Proportional to 81,735,272.88, 122,660,371.72 and 73,920,653.55

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Solution

The fourth proportional to 81,735,272.88, 122,660,371.72 and 73,920,653.55 is: 110,932,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,735,272.88 : 122,660,371.72 = 73,920,653.55 : x
  2. Step 2: Convert to fraction form
    81,735,272.88/122,660,371.72 = 73,920,653.55/x
  3. Step 3: Cross multiply
    81,735,272.88x = 122,660,371.72 × 73,920,653.55
  4. Step 4: Simplify right side
    81,735,272.88x = 9,067,134,841,245,432
  5. Step 5: Solve for x
    x = 9,067,134,841,245,432/81,735,272.88
  6. Step 6: Final answer
    x = 110,932,948.80

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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.