Home / 272,245,711.20-408,368,566.80-90,469,269.60

Finding the Fourth Proportional to 272,245,711.20, 408,368,566.80 and 90,469,269.60

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Solution

The fourth proportional to 272,245,711.20, 408,368,566.80 and 90,469,269.60 is: 135,703,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,245,711.20 : 408,368,566.80 = 90,469,269.60 : x
  2. Step 2: Convert to fraction form
    272,245,711.20/408,368,566.80 = 90,469,269.60/x
  3. Step 3: Cross multiply
    272,245,711.20x = 408,368,566.80 × 90,469,269.60
  4. Step 4: Simplify right side
    272,245,711.20x = 36,944,805,965,994,808
  5. Step 5: Solve for x
    x = 36,944,805,965,994,808/272,245,711.20
  6. Step 6: Final answer
    x = 135,703,904.40

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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.