Home / 664,143,599.20-996,215,398.80-626,520,200.80

Finding the Fourth Proportional to 664,143,599.20, 996,215,398.80 and 626,520,200.80

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Solution

The fourth proportional to 664,143,599.20, 996,215,398.80 and 626,520,200.80 is: 939,780,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,143,599.20 : 996,215,398.80 = 626,520,200.80 : x
  2. Step 2: Convert to fraction form
    664,143,599.20/996,215,398.80 = 626,520,200.80/x
  3. Step 3: Cross multiply
    664,143,599.20x = 996,215,398.80 × 626,520,200.80
  4. Step 4: Simplify right side
    664,143,599.20x = 624,149,071,696,227,968
  5. Step 5: Solve for x
    x = 624,149,071,696,227,968/664,143,599.20
  6. Step 6: Final answer
    x = 939,780,301.20

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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.