Home / 449,278,668.48-673,990,418.67-138,386,139.86

Finding the Fourth Proportional to 449,278,668.48, 673,990,418.67 and 138,386,139.86

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Solution

The fourth proportional to 449,278,668.48, 673,990,418.67 and 138,386,139.86 is: 207,601,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,278,668.48 : 673,990,418.67 = 138,386,139.86 : x
  2. Step 2: Convert to fraction form
    449,278,668.48/673,990,418.67 = 138,386,139.86/x
  3. Step 3: Cross multiply
    449,278,668.48x = 673,990,418.67 × 138,386,139.86
  4. Step 4: Simplify right side
    449,278,668.48x = 93,270,932,344,051,552
  5. Step 5: Solve for x
    x = 93,270,932,344,051,552/449,278,668.48
  6. Step 6: Final answer
    x = 207,601,515.25

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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.