Home / 220,152,140.80-330,228,211.20-90,693,113.20

Finding the Fourth Proportional to 220,152,140.80, 330,228,211.20 and 90,693,113.20

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Solution

The fourth proportional to 220,152,140.80, 330,228,211.20 and 90,693,113.20 is: 136,039,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,152,140.80 : 330,228,211.20 = 90,693,113.20 : x
  2. Step 2: Convert to fraction form
    220,152,140.80/330,228,211.20 = 90,693,113.20/x
  3. Step 3: Cross multiply
    220,152,140.80x = 330,228,211.20 × 90,693,113.20
  4. Step 4: Simplify right side
    220,152,140.80x = 29,949,424,540,195,108
  5. Step 5: Solve for x
    x = 29,949,424,540,195,108/220,152,140.80
  6. Step 6: Final answer
    x = 136,039,669.80

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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.