Home / 821,510,499.20-1,232,275,215.03-296,919,441.53

Finding the Fourth Proportional to 821,510,499.20, 1,232,275,215.03 and 296,919,441.53

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Solution

The fourth proportional to 821,510,499.20, 1,232,275,215.03 and 296,919,441.53 is: 445,382,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,510,499.20 : 1,232,275,215.03 = 296,919,441.53 : x
  2. Step 2: Convert to fraction form
    821,510,499.20/1,232,275,215.03 = 296,919,441.53/x
  3. Step 3: Cross multiply
    821,510,499.20x = 1,232,275,215.03 × 296,919,441.53
  4. Step 4: Simplify right side
    821,510,499.20x = 365,886,468,662,878,208
  5. Step 5: Solve for x
    x = 365,886,468,662,878,208/821,510,499.20
  6. Step 6: Final answer
    x = 445,382,583.69

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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.