Home / 320,756,809.78-442,644,397.11-174,079,093.78

Finding the Fourth Proportional to 320,756,809.78, 442,644,397.11 and 174,079,093.78

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Solution

The fourth proportional to 320,756,809.78, 442,644,397.11 and 174,079,093.78 is: 240,229,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,756,809.78 : 442,644,397.11 = 174,079,093.78 : x
  2. Step 2: Convert to fraction form
    320,756,809.78/442,644,397.11 = 174,079,093.78/x
  3. Step 3: Cross multiply
    320,756,809.78x = 442,644,397.11 × 174,079,093.78
  4. Step 4: Simplify right side
    320,756,809.78x = 77,055,135,515,703,248
  5. Step 5: Solve for x
    x = 77,055,135,515,703,248/320,756,809.78
  6. Step 6: Final answer
    x = 240,229,149.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.