Home / 86,017,587.20-129,026,380.80-73,028,556.80

Finding the Fourth Proportional to 86,017,587.20, 129,026,380.80 and 73,028,556.80

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Solution

The fourth proportional to 86,017,587.20, 129,026,380.80 and 73,028,556.80 is: 109,542,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017,587.20 : 129,026,380.80 = 73,028,556.80 : x
  2. Step 2: Convert to fraction form
    86,017,587.20/129,026,380.80 = 73,028,556.80/x
  3. Step 3: Cross multiply
    86,017,587.20x = 129,026,380.80 × 73,028,556.80
  4. Step 4: Simplify right side
    86,017,587.20x = 9,422,610,378,951,228
  5. Step 5: Solve for x
    x = 9,422,610,378,951,228/86,017,587.20
  6. Step 6: Final answer
    x = 109,542,835.20

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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.