Home / 212,198,041.80-318,465,024.30-82,867,609.80

Finding the Fourth Proportional to 212,198,041.80, 318,465,024.30 and 82,867,609.80

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Solution

The fourth proportional to 212,198,041.80, 318,465,024.30 and 82,867,609.80 is: 124,367,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,198,041.80 : 318,465,024.30 = 82,867,609.80 : x
  2. Step 2: Convert to fraction form
    212,198,041.80/318,465,024.30 = 82,867,609.80/x
  3. Step 3: Cross multiply
    212,198,041.80x = 318,465,024.30 × 82,867,609.80
  4. Step 4: Simplify right side
    212,198,041.80x = 26,390,435,368,639,920
  5. Step 5: Solve for x
    x = 26,390,435,368,639,920/212,198,041.80
  6. Step 6: Final answer
    x = 124,367,007.09

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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.