Home / 288,825,839.17-398,579,249.48-156,666,676.11

Finding the Fourth Proportional to 288,825,839.17, 398,579,249.48 and 156,666,676.11

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Solution

The fourth proportional to 288,825,839.17, 398,579,249.48 and 156,666,676.11 is: 216,199,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,825,839.17 : 398,579,249.48 = 156,666,676.11 : x
  2. Step 2: Convert to fraction form
    288,825,839.17/398,579,249.48 = 156,666,676.11/x
  3. Step 3: Cross multiply
    288,825,839.17x = 398,579,249.48 × 156,666,676.11
  4. Step 4: Simplify right side
    288,825,839.17x = 62,444,086,181,666,720
  5. Step 5: Solve for x
    x = 62,444,086,181,666,720/288,825,839.17
  6. Step 6: Final answer
    x = 216,199,791.41

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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.