Home / 448,371,742.68-672,585,979.20-189,538,718.04

Finding the Fourth Proportional to 448,371,742.68, 672,585,979.20 and 189,538,718.04

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Solution

The fourth proportional to 448,371,742.68, 672,585,979.20 and 189,538,718.04 is: 284,320,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,371,742.68 : 672,585,979.20 = 189,538,718.04 : x
  2. Step 2: Convert to fraction form
    448,371,742.68/672,585,979.20 = 189,538,718.04/x
  3. Step 3: Cross multiply
    448,371,742.68x = 672,585,979.20 × 189,538,718.04
  4. Step 4: Simplify right side
    448,371,742.68x = 127,481,084,269,246,112
  5. Step 5: Solve for x
    x = 127,481,084,269,246,112/448,371,742.68
  6. Step 6: Final answer
    x = 284,320,067.78

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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.