Home / 319,921,805.80-479,882,708.70-282,933,512.20

Finding the Fourth Proportional to 319,921,805.80, 479,882,708.70 and 282,933,512.20

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Solution

The fourth proportional to 319,921,805.80, 479,882,708.70 and 282,933,512.20 is: 424,400,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,921,805.80 : 479,882,708.70 = 282,933,512.20 : x
  2. Step 2: Convert to fraction form
    319,921,805.80/479,882,708.70 = 282,933,512.20/x
  3. Step 3: Cross multiply
    319,921,805.80x = 479,882,708.70 × 282,933,512.20
  4. Step 4: Simplify right side
    319,921,805.80x = 135,774,900,216,540,480
  5. Step 5: Solve for x
    x = 135,774,900,216,540,480/319,921,805.80
  6. Step 6: Final answer
    x = 424,400,268.30

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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.