Home / 387,255,951.76-534,397,622.34-211,040,163.58

Finding the Fourth Proportional to 387,255,951.76, 534,397,622.34 and 211,040,163.58

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Solution

The fourth proportional to 387,255,951.76, 534,397,622.34 and 211,040,163.58 is: 291,226,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,255,951.76 : 534,397,622.34 = 211,040,163.58 : x
  2. Step 2: Convert to fraction form
    387,255,951.76/534,397,622.34 = 211,040,163.58/x
  3. Step 3: Cross multiply
    387,255,951.76x = 534,397,622.34 × 211,040,163.58
  4. Step 4: Simplify right side
    387,255,951.76x = 112,779,361,635,396,656
  5. Step 5: Solve for x
    x = 112,779,361,635,396,656/387,255,951.76
  6. Step 6: Final answer
    x = 291,226,929.17

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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.