Home / 128,735,027.20-193,326,489.60-68,268,851.20

Finding the Fourth Proportional to 128,735,027.20, 193,326,489.60 and 68,268,851.20

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Solution

The fourth proportional to 128,735,027.20, 193,326,489.60 and 68,268,851.20 is: 102,522,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,735,027.20 : 193,326,489.60 = 68,268,851.20 : x
  2. Step 2: Convert to fraction form
    128,735,027.20/193,326,489.60 = 68,268,851.20/x
  3. Step 3: Cross multiply
    128,735,027.20x = 193,326,489.60 × 68,268,851.20
  4. Step 4: Simplify right side
    128,735,027.20x = 13,198,177,351,520,748
  5. Step 5: Solve for x
    x = 13,198,177,351,520,748/128,735,027.20
  6. Step 6: Final answer
    x = 102,522,038.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.