Home / 715,432,512.80-1,073,148,769.20-409,322,496.80

Finding the Fourth Proportional to 715,432,512.80, 1,073,148,769.20 and 409,322,496.80

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Solution

The fourth proportional to 715,432,512.80, 1,073,148,769.20 and 409,322,496.80 is: 613,983,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,432,512.80 : 1,073,148,769.20 = 409,322,496.80 : x
  2. Step 2: Convert to fraction form
    715,432,512.80/1,073,148,769.20 = 409,322,496.80/x
  3. Step 3: Cross multiply
    715,432,512.80x = 1,073,148,769.20 × 409,322,496.80
  4. Step 4: Simplify right side
    715,432,512.80x = 439,263,933,646,790,976
  5. Step 5: Solve for x
    x = 439,263,933,646,790,976/715,432,512.80
  6. Step 6: Final answer
    x = 613,983,745.20

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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.