Home / 347,756,821.80-521,635,232.70-321,480,162.60

Finding the Fourth Proportional to 347,756,821.80, 521,635,232.70 and 321,480,162.60

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Solution

The fourth proportional to 347,756,821.80, 521,635,232.70 and 321,480,162.60 is: 482,220,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,756,821.80 : 521,635,232.70 = 321,480,162.60 : x
  2. Step 2: Convert to fraction form
    347,756,821.80/521,635,232.70 = 321,480,162.60/x
  3. Step 3: Cross multiply
    347,756,821.80x = 521,635,232.70 × 321,480,162.60
  4. Step 4: Simplify right side
    347,756,821.80x = 167,695,379,426,284,832
  5. Step 5: Solve for x
    x = 167,695,379,426,284,832/347,756,821.80
  6. Step 6: Final answer
    x = 482,220,243.90

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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.