Home / 212,312,708.80-318,469,063.20-144,288,260.80

Finding the Fourth Proportional to 212,312,708.80, 318,469,063.20 and 144,288,260.80

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Solution

The fourth proportional to 212,312,708.80, 318,469,063.20 and 144,288,260.80 is: 216,432,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,312,708.80 : 318,469,063.20 = 144,288,260.80 : x
  2. Step 2: Convert to fraction form
    212,312,708.80/318,469,063.20 = 144,288,260.80/x
  3. Step 3: Cross multiply
    212,312,708.80x = 318,469,063.20 × 144,288,260.80
  4. Step 4: Simplify right side
    212,312,708.80x = 45,951,347,247,733,288
  5. Step 5: Solve for x
    x = 45,951,347,247,733,288/212,312,708.80
  6. Step 6: Final answer
    x = 216,432,391.20

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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.