Home / 480,508,678.62-663,107,195.70-282,278,528.43

Finding the Fourth Proportional to 480,508,678.62, 663,107,195.70 and 282,278,528.43

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Solution

The fourth proportional to 480,508,678.62, 663,107,195.70 and 282,278,528.43 is: 389,547,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,508,678.62 : 663,107,195.70 = 282,278,528.43 : x
  2. Step 2: Convert to fraction form
    480,508,678.62/663,107,195.70 = 282,278,528.43/x
  3. Step 3: Cross multiply
    480,508,678.62x = 663,107,195.70 × 282,278,528.43
  4. Step 4: Simplify right side
    480,508,678.62x = 187,180,923,393,540,032
  5. Step 5: Solve for x
    x = 187,180,923,393,540,032/480,508,678.62
  6. Step 6: Final answer
    x = 389,547,435.30

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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.