Home / 120,584,138.60-180,876,207.90-74,667,636.20

Finding the Fourth Proportional to 120,584,138.60, 180,876,207.90 and 74,667,636.20

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Solution

The fourth proportional to 120,584,138.60, 180,876,207.90 and 74,667,636.20 is: 112,001,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,584,138.60 : 180,876,207.90 = 74,667,636.20 : x
  2. Step 2: Convert to fraction form
    120,584,138.60/180,876,207.90 = 74,667,636.20/x
  3. Step 3: Cross multiply
    120,584,138.60x = 180,876,207.90 × 74,667,636.20
  4. Step 4: Simplify right side
    120,584,138.60x = 13,505,598,888,712,766
  5. Step 5: Solve for x
    x = 13,505,598,888,712,766/120,584,138.60
  6. Step 6: Final answer
    x = 112,001,454.30

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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.