Home / 220,332,581.61-330,486,912.15-66,966,680.63

Finding the Fourth Proportional to 220,332,581.61, 330,486,912.15 and 66,966,680.63

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Solution

The fourth proportional to 220,332,581.61, 330,486,912.15 and 66,966,680.63 is: 100,446,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,332,581.61 : 330,486,912.15 = 66,966,680.63 : x
  2. Step 2: Convert to fraction form
    220,332,581.61/330,486,912.15 = 66,966,680.63/x
  3. Step 3: Cross multiply
    220,332,581.61x = 330,486,912.15 × 66,966,680.63
  4. Step 4: Simplify right side
    220,332,581.61x = 22,131,611,496,691,480
  5. Step 5: Solve for x
    x = 22,131,611,496,691,480/220,332,581.61
  6. Step 6: Final answer
    x = 100,446,385.80

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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.