Home / 220,046,579.20-330,069,868.80-66,672,706.60

Finding the Fourth Proportional to 220,046,579.20, 330,069,868.80 and 66,672,706.60

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Solution

The fourth proportional to 220,046,579.20, 330,069,868.80 and 66,672,706.60 is: 100,009,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,046,579.20 : 330,069,868.80 = 66,672,706.60 : x
  2. Step 2: Convert to fraction form
    220,046,579.20/330,069,868.80 = 66,672,706.60/x
  3. Step 3: Cross multiply
    220,046,579.20x = 330,069,868.80 × 66,672,706.60
  4. Step 4: Simplify right side
    220,046,579.20x = 22,006,651,520,002,896
  5. Step 5: Solve for x
    x = 22,006,651,520,002,896/220,046,579.20
  6. Step 6: Final answer
    x = 100,009,059.90

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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.