Home / 288,825,838.92-398,579,249.13-156,666,675.86

Finding the Fourth Proportional to 288,825,838.92, 398,579,249.13 and 156,666,675.86

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Solution

The fourth proportional to 288,825,838.92, 398,579,249.13 and 156,666,675.86 is: 216,199,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,825,838.92 : 398,579,249.13 = 156,666,675.86 : x
  2. Step 2: Convert to fraction form
    288,825,838.92/398,579,249.13 = 156,666,675.86/x
  3. Step 3: Cross multiply
    288,825,838.92x = 398,579,249.13 × 156,666,675.86
  4. Step 4: Simplify right side
    288,825,838.92x = 62,444,086,027,188,568
  5. Step 5: Solve for x
    x = 62,444,086,027,188,568/288,825,838.92
  6. Step 6: Final answer
    x = 216,199,791.06

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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.