Home / 120,584,145.60-180,876,218.40-74,667,643.20

Finding the Fourth Proportional to 120,584,145.60, 180,876,218.40 and 74,667,643.20

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Solution

The fourth proportional to 120,584,145.60, 180,876,218.40 and 74,667,643.20 is: 112,001,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,584,145.60 : 180,876,218.40 = 74,667,643.20 : x
  2. Step 2: Convert to fraction form
    120,584,145.60/180,876,218.40 = 74,667,643.20/x
  3. Step 3: Cross multiply
    120,584,145.60x = 180,876,218.40 × 74,667,643.20
  4. Step 4: Simplify right side
    120,584,145.60x = 13,505,600,938,856,476
  5. Step 5: Solve for x
    x = 13,505,600,938,856,476/120,584,145.60
  6. Step 6: Final answer
    x = 112,001,464.80

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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.