Home / 449,278,668.98-673,990,419.42-138,386,140.37

Finding the Fourth Proportional to 449,278,668.98, 673,990,419.42 and 138,386,140.37

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Solution

The fourth proportional to 449,278,668.98, 673,990,419.42 and 138,386,140.37 is: 207,601,516.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,278,668.98 : 673,990,419.42 = 138,386,140.37 : x
  2. Step 2: Convert to fraction form
    449,278,668.98/673,990,419.42 = 138,386,140.37/x
  3. Step 3: Cross multiply
    449,278,668.98x = 673,990,419.42 × 138,386,140.37
  4. Step 4: Simplify right side
    449,278,668.98x = 93,270,932,786,521,344
  5. Step 5: Solve for x
    x = 93,270,932,786,521,344/449,278,668.98
  6. Step 6: Final answer
    x = 207,601,516.00

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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.