Home / 330,861,839.20-496,292,758.80-85,217,999.20

Finding the Fourth Proportional to 330,861,839.20, 496,292,758.80 and 85,217,999.20

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Solution

The fourth proportional to 330,861,839.20, 496,292,758.80 and 85,217,999.20 is: 127,826,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,861,839.20 : 496,292,758.80 = 85,217,999.20 : x
  2. Step 2: Convert to fraction form
    330,861,839.20/496,292,758.80 = 85,217,999.20/x
  3. Step 3: Cross multiply
    330,861,839.20x = 496,292,758.80 × 85,217,999.20
  4. Step 4: Simplify right side
    330,861,839.20x = 42,293,075,922,384,192
  5. Step 5: Solve for x
    x = 42,293,075,922,384,192/330,861,839.20
  6. Step 6: Final answer
    x = 127,826,998.80

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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.