Home / 220,171,073.40-330,172,629.30-66,766,145.40

Finding the Fourth Proportional to 220,171,073.40, 330,172,629.30 and 66,766,145.40

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Solution

The fourth proportional to 220,171,073.40, 330,172,629.30 and 66,766,145.40 is: 100,123,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,171,073.40 : 330,172,629.30 = 66,766,145.40 : x
  2. Step 2: Convert to fraction form
    220,171,073.40/330,172,629.30 = 66,766,145.40/x
  3. Step 3: Cross multiply
    220,171,073.40x = 330,172,629.30 × 66,766,145.40
  4. Step 4: Simplify right side
    220,171,073.40x = 22,044,353,774,944,100
  5. Step 5: Solve for x
    x = 22,044,353,774,944,100/220,171,073.40
  6. Step 6: Final answer
    x = 100,123,751.20

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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.