Home / 85,458,135.10-117,815,096.55-54,080,575.42

Finding the Fourth Proportional to 85,458,135.10, 117,815,096.55 and 54,080,575.42

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Solution

The fourth proportional to 85,458,135.10, 117,815,096.55 and 54,080,575.42 is: 74,557,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,458,135.10 : 117,815,096.55 = 54,080,575.42 : x
  2. Step 2: Convert to fraction form
    85,458,135.10/117,815,096.55 = 54,080,575.42/x
  3. Step 3: Cross multiply
    85,458,135.10x = 117,815,096.55 × 54,080,575.42
  4. Step 4: Simplify right side
    85,458,135.10x = 6,371,508,214,586,857
  5. Step 5: Solve for x
    x = 6,371,508,214,586,857/85,458,135.10
  6. Step 6: Final answer
    x = 74,557,070.63

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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.