Home / 85,458,151.10-117,815,118.60-54,080,591.42

Finding the Fourth Proportional to 85,458,151.10, 117,815,118.60 and 54,080,591.42

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Solution

The fourth proportional to 85,458,151.10, 117,815,118.60 and 54,080,591.42 is: 74,557,092.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,458,151.10 : 117,815,118.60 = 54,080,591.42 : x
  2. Step 2: Convert to fraction form
    85,458,151.10/117,815,118.60 = 54,080,591.42/x
  3. Step 3: Cross multiply
    85,458,151.10x = 117,815,118.60 × 54,080,591.42
  4. Step 4: Simplify right side
    85,458,151.10x = 6,371,511,292,105,442
  5. Step 5: Solve for x
    x = 6,371,511,292,105,442/85,458,151.10
  6. Step 6: Final answer
    x = 74,557,092.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.