Home / 628,920,778.80-943,381,168.20-192,220,618.80

Finding the Fourth Proportional to 628,920,778.80, 943,381,168.20 and 192,220,618.80

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Solution

The fourth proportional to 628,920,778.80, 943,381,168.20 and 192,220,618.80 is: 288,330,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,920,778.80 : 943,381,168.20 = 192,220,618.80 : x
  2. Step 2: Convert to fraction form
    628,920,778.80/943,381,168.20 = 192,220,618.80/x
  3. Step 3: Cross multiply
    628,920,778.80x = 943,381,168.20 × 192,220,618.80
  4. Step 4: Simplify right side
    628,920,778.80x = 181,337,311,915,670,912
  5. Step 5: Solve for x
    x = 181,337,311,915,670,912/628,920,778.80
  6. Step 6: Final answer
    x = 288,330,928.20

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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.