Home / 449,278,839.95-673,990,674.53-138,386,310.57

Finding the Fourth Proportional to 449,278,839.95, 673,990,674.53 and 138,386,310.57

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Solution

The fourth proportional to 449,278,839.95, 673,990,674.53 and 138,386,310.57 is: 207,601,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,278,839.95 : 673,990,674.53 = 138,386,310.57 : x
  2. Step 2: Convert to fraction form
    449,278,839.95/673,990,674.53 = 138,386,310.57/x
  3. Step 3: Cross multiply
    449,278,839.95x = 673,990,674.53 × 138,386,310.57
  4. Step 4: Simplify right side
    449,278,839.95x = 93,271,082,806,100,432
  5. Step 5: Solve for x
    x = 93,271,082,806,100,432/449,278,839.95
  6. Step 6: Final answer
    x = 207,601,770.91

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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.