Home / 139,969,200.60-209,953,800.90-49,080,979.80

Finding the Fourth Proportional to 139,969,200.60, 209,953,800.90 and 49,080,979.80

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Solution

The fourth proportional to 139,969,200.60, 209,953,800.90 and 49,080,979.80 is: 73,621,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,200.60 : 209,953,800.90 = 49,080,979.80 : x
  2. Step 2: Convert to fraction form
    139,969,200.60/209,953,800.90 = 49,080,979.80/x
  3. Step 3: Cross multiply
    139,969,200.60x = 209,953,800.90 × 49,080,979.80
  4. Step 4: Simplify right side
    139,969,200.60x = 10,304,738,260,906,122
  5. Step 5: Solve for x
    x = 10,304,738,260,906,122/139,969,200.60
  6. Step 6: Final answer
    x = 73,621,469.70

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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.