Home / 220,173,390.80-330,260,086.20-66,819,201.20

Finding the Fourth Proportional to 220,173,390.80, 330,260,086.20 and 66,819,201.20

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Solution

The fourth proportional to 220,173,390.80, 330,260,086.20 and 66,819,201.20 is: 100,228,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,173,390.80 : 330,260,086.20 = 66,819,201.20 : x
  2. Step 2: Convert to fraction form
    220,173,390.80/330,260,086.20 = 66,819,201.20/x
  3. Step 3: Cross multiply
    220,173,390.80x = 330,260,086.20 × 66,819,201.20
  4. Step 4: Simplify right side
    220,173,390.80x = 22,067,715,148,127,144
  5. Step 5: Solve for x
    x = 22,067,715,148,127,144/220,173,390.80
  6. Step 6: Final answer
    x = 100,228,801.80

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1.5x scale

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.