Home / 212,198,037.30-318,465,017.55-82,867,605.30

Finding the Fourth Proportional to 212,198,037.30, 318,465,017.55 and 82,867,605.30

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Solution

The fourth proportional to 212,198,037.30, 318,465,017.55 and 82,867,605.30 is: 124,367,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,198,037.30 : 318,465,017.55 = 82,867,605.30 : x
  2. Step 2: Convert to fraction form
    212,198,037.30/318,465,017.55 = 82,867,605.30/x
  3. Step 3: Cross multiply
    212,198,037.30x = 318,465,017.55 × 82,867,605.30
  4. Step 4: Simplify right side
    212,198,037.30x = 26,390,433,376,190,972
  5. Step 5: Solve for x
    x = 26,390,433,376,190,972/212,198,037.30
  6. Step 6: Final answer
    x = 124,367,000.34

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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.