Home / 203,385,901.20-305,078,851.80-107,834,413.20

Finding the Fourth Proportional to 203,385,901.20, 305,078,851.80 and 107,834,413.20

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Solution

The fourth proportional to 203,385,901.20, 305,078,851.80 and 107,834,413.20 is: 161,751,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,385,901.20 : 305,078,851.80 = 107,834,413.20 : x
  2. Step 2: Convert to fraction form
    203,385,901.20/305,078,851.80 = 107,834,413.20/x
  3. Step 3: Cross multiply
    203,385,901.20x = 305,078,851.80 × 107,834,413.20
  4. Step 4: Simplify right side
    203,385,901.20x = 32,897,998,963,582,764
  5. Step 5: Solve for x
    x = 32,897,998,963,582,764/203,385,901.20
  6. Step 6: Final answer
    x = 161,751,619.80

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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.