Home / 359,143,378.40-538,456,517.16-220,682,906.60

Finding the Fourth Proportional to 359,143,378.40, 538,456,517.16 and 220,682,906.60

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Solution

The fourth proportional to 359,143,378.40, 538,456,517.16 and 220,682,906.60 is: 330,865,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,143,378.40 : 538,456,517.16 = 220,682,906.60 : x
  2. Step 2: Convert to fraction form
    359,143,378.40/538,456,517.16 = 220,682,906.60/x
  3. Step 3: Cross multiply
    359,143,378.40x = 538,456,517.16 × 220,682,906.60
  4. Step 4: Simplify right side
    359,143,378.40x = 118,828,149,284,581,568
  5. Step 5: Solve for x
    x = 118,828,149,284,581,568/359,143,378.40
  6. Step 6: Final answer
    x = 330,865,488.36

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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.