Home / 120,584,418.10-180,876,627.15-74,667,915.70

Finding the Fourth Proportional to 120,584,418.10, 180,876,627.15 and 74,667,915.70

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Solution

The fourth proportional to 120,584,418.10, 180,876,627.15 and 74,667,915.70 is: 112,001,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,584,418.10 : 180,876,627.15 = 74,667,915.70 : x
  2. Step 2: Convert to fraction form
    120,584,418.10/180,876,627.15 = 74,667,915.70/x
  3. Step 3: Cross multiply
    120,584,418.10x = 180,876,627.15 × 74,667,915.70
  4. Step 4: Simplify right side
    120,584,418.10x = 13,505,680,748,136,532
  5. Step 5: Solve for x
    x = 13,505,680,748,136,532/120,584,418.10
  6. Step 6: Final answer
    x = 112,001,873.55

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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.