Home / 78,027,078-107,636,543.28-48,248,205.60

Finding the Fourth Proportional to 78,027,078, 107,636,543.28 and 48,248,205.60

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Solution

The fourth proportional to 78,027,078, 107,636,543.28 and 48,248,205.60 is: 66,557,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,027,078 : 107,636,543.28 = 48,248,205.60 : x
  2. Step 2: Convert to fraction form
    78,027,078/107,636,543.28 = 48,248,205.60/x
  3. Step 3: Cross multiply
    78,027,078x = 107,636,543.28 × 48,248,205.60
  4. Step 4: Simplify right side
    78,027,078x = 5,193,270,070,246,739
  5. Step 5: Solve for x
    x = 5,193,270,070,246,739/78,027,078
  6. Step 6: Final answer
    x = 66,557,279.90

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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.