Home / 387,096,279.40-580,644,419.10-223,837,604.20

Finding the Fourth Proportional to 387,096,279.40, 580,644,419.10 and 223,837,604.20

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Solution

The fourth proportional to 387,096,279.40, 580,644,419.10 and 223,837,604.20 is: 335,756,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,096,279.40 : 580,644,419.10 = 223,837,604.20 : x
  2. Step 2: Convert to fraction form
    387,096,279.40/580,644,419.10 = 223,837,604.20/x
  3. Step 3: Cross multiply
    387,096,279.40x = 580,644,419.10 × 223,837,604.20
  4. Step 4: Simplify right side
    387,096,279.40x = 129,970,055,663,444,720
  5. Step 5: Solve for x
    x = 129,970,055,663,444,720/387,096,279.40
  6. Step 6: Final answer
    x = 335,756,406.30

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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.