Home / 81,835,167.35-122,752,751.03-21,250,893.35

Finding the Fourth Proportional to 81,835,167.35, 122,752,751.03 and 21,250,893.35

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Solution

The fourth proportional to 81,835,167.35, 122,752,751.03 and 21,250,893.35 is: 31,876,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835,167.35 : 122,752,751.03 = 21,250,893.35 : x
  2. Step 2: Convert to fraction form
    81,835,167.35/122,752,751.03 = 21,250,893.35/x
  3. Step 3: Cross multiply
    81,835,167.35x = 122,752,751.03 × 21,250,893.35
  4. Step 4: Simplify right side
    81,835,167.35x = 2,608,605,620,451,378.50
  5. Step 5: Solve for x
    x = 2,608,605,620,451,378.50/81,835,167.35
  6. Step 6: Final answer
    x = 31,876,340.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.