Home / 299,382,078.60-449,073,117.90-138,138,942.60

Finding the Fourth Proportional to 299,382,078.60, 449,073,117.90 and 138,138,942.60

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Solution

The fourth proportional to 299,382,078.60, 449,073,117.90 and 138,138,942.60 is: 207,208,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,382,078.60 : 449,073,117.90 = 138,138,942.60 : x
  2. Step 2: Convert to fraction form
    299,382,078.60/449,073,117.90 = 138,138,942.60/x
  3. Step 3: Cross multiply
    299,382,078.60x = 449,073,117.90 × 138,138,942.60
  4. Step 4: Simplify right side
    299,382,078.60x = 62,034,485,656,791,128
  5. Step 5: Solve for x
    x = 62,034,485,656,791,128/299,382,078.60
  6. Step 6: Final answer
    x = 207,208,413.90

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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.