Home / 774,206,270.40-1,161,309,405.60-343,384,766.40

Finding the Fourth Proportional to 774,206,270.40, 1,161,309,405.60 and 343,384,766.40

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Solution

The fourth proportional to 774,206,270.40, 1,161,309,405.60 and 343,384,766.40 is: 515,077,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,206,270.40 : 1,161,309,405.60 = 343,384,766.40 : x
  2. Step 2: Convert to fraction form
    774,206,270.40/1,161,309,405.60 = 343,384,766.40/x
  3. Step 3: Cross multiply
    774,206,270.40x = 1,161,309,405.60 × 343,384,766.40
  4. Step 4: Simplify right side
    774,206,270.40x = 398,775,958,960,078,784
  5. Step 5: Solve for x
    x = 398,775,958,960,078,784/774,206,270.40
  6. Step 6: Final answer
    x = 515,077,149.60

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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.