Home / 207,918,646.60-311,542,046.70-131,104,208.20

Finding the Fourth Proportional to 207,918,646.60, 311,542,046.70 and 131,104,208.20

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Solution

The fourth proportional to 207,918,646.60, 311,542,046.70 and 131,104,208.20 is: 196,444,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,918,646.60 : 311,542,046.70 = 131,104,208.20 : x
  2. Step 2: Convert to fraction form
    207,918,646.60/311,542,046.70 = 131,104,208.20/x
  3. Step 3: Cross multiply
    207,918,646.60x = 311,542,046.70 × 131,104,208.20
  4. Step 4: Simplify right side
    207,918,646.60x = 40,844,473,353,610,920
  5. Step 5: Solve for x
    x = 40,844,473,353,610,920/207,918,646.60
  6. Step 6: Final answer
    x = 196,444,494.14

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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.