Home / 86,221,023.09-118,967,249.88-49,544,508.21

Finding the Fourth Proportional to 86,221,023.09, 118,967,249.88 and 49,544,508.21

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Solution

The fourth proportional to 86,221,023.09, 118,967,249.88 and 49,544,508.21 is: 68,361,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,221,023.09 : 118,967,249.88 = 49,544,508.21 : x
  2. Step 2: Convert to fraction form
    86,221,023.09/118,967,249.88 = 49,544,508.21/x
  3. Step 3: Cross multiply
    86,221,023.09x = 118,967,249.88 × 49,544,508.21
  4. Step 4: Simplify right side
    86,221,023.09x = 5,894,173,888,400,781
  5. Step 5: Solve for x
    x = 5,894,173,888,400,781/86,221,023.09
  6. Step 6: Final answer
    x = 68,361,214.90

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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.