Home / 207,918,689.60-311,542,111.20-131,104,251.20

Finding the Fourth Proportional to 207,918,689.60, 311,542,111.20 and 131,104,251.20

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Solution

The fourth proportional to 207,918,689.60, 311,542,111.20 and 131,104,251.20 is: 196,444,558.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,918,689.60 : 311,542,111.20 = 131,104,251.20 : x
  2. Step 2: Convert to fraction form
    207,918,689.60/311,542,111.20 = 131,104,251.20/x
  3. Step 3: Cross multiply
    207,918,689.60x = 311,542,111.20 × 131,104,251.20
  4. Step 4: Simplify right side
    207,918,689.60x = 40,844,495,206,143,136
  5. Step 5: Solve for x
    x = 40,844,495,206,143,136/207,918,689.60
  6. Step 6: Final answer
    x = 196,444,558.61

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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.