Home / 281,634,382.80-422,451,574.20-213,609,934.80

Finding the Fourth Proportional to 281,634,382.80, 422,451,574.20 and 213,609,934.80

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Solution

The fourth proportional to 281,634,382.80, 422,451,574.20 and 213,609,934.80 is: 320,414,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,634,382.80 : 422,451,574.20 = 213,609,934.80 : x
  2. Step 2: Convert to fraction form
    281,634,382.80/422,451,574.20 = 213,609,934.80/x
  3. Step 3: Cross multiply
    281,634,382.80x = 422,451,574.20 × 213,609,934.80
  4. Step 4: Simplify right side
    281,634,382.80x = 90,239,853,221,019,360
  5. Step 5: Solve for x
    x = 90,239,853,221,019,360/281,634,382.80
  6. Step 6: Final answer
    x = 320,414,902.20

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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.