Home / 289,954,500.60-400,221,528.05-189,498,049.80

Finding the Fourth Proportional to 289,954,500.60, 400,221,528.05 and 189,498,049.80

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Solution

The fourth proportional to 289,954,500.60, 400,221,528.05 and 189,498,049.80 is: 261,562,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,954,500.60 : 400,221,528.05 = 189,498,049.80 : x
  2. Step 2: Convert to fraction form
    289,954,500.60/400,221,528.05 = 189,498,049.80/x
  3. Step 3: Cross multiply
    289,954,500.60x = 400,221,528.05 × 189,498,049.80
  4. Step 4: Simplify right side
    289,954,500.60x = 75,841,199,051,711,392
  5. Step 5: Solve for x
    x = 75,841,199,051,711,392/289,954,500.60
  6. Step 6: Final answer
    x = 261,562,413.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.