Home / 622,131,998.80-933,197,998.20-391,352,760.40

Finding the Fourth Proportional to 622,131,998.80, 933,197,998.20 and 391,352,760.40

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Solution

The fourth proportional to 622,131,998.80, 933,197,998.20 and 391,352,760.40 is: 587,029,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,131,998.80 : 933,197,998.20 = 391,352,760.40 : x
  2. Step 2: Convert to fraction form
    622,131,998.80/933,197,998.20 = 391,352,760.40/x
  3. Step 3: Cross multiply
    622,131,998.80x = 933,197,998.20 × 391,352,760.40
  4. Step 4: Simplify right side
    622,131,998.80x = 365,209,612,595,324,224
  5. Step 5: Solve for x
    x = 365,209,612,595,324,224/622,131,998.80
  6. Step 6: Final answer
    x = 587,029,140.60

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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.