Home / 782,345,380.60-1,079,401,182.42-468,965,251.72

Finding the Fourth Proportional to 782,345,380.60, 1,079,401,182.42 and 468,965,251.72

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Solution

The fourth proportional to 782,345,380.60, 1,079,401,182.42 and 468,965,251.72 is: 647,030,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,345,380.60 : 1,079,401,182.42 = 468,965,251.72 : x
  2. Step 2: Convert to fraction form
    782,345,380.60/1,079,401,182.42 = 468,965,251.72/x
  3. Step 3: Cross multiply
    782,345,380.60x = 1,079,401,182.42 × 468,965,251.72
  4. Step 4: Simplify right side
    782,345,380.60x = 506,201,647,220,460,992
  5. Step 5: Solve for x
    x = 506,201,647,220,460,992/782,345,380.60
  6. Step 6: Final answer
    x = 647,030,914.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.