Home / 768,218,753.80-1,152,331,120.41-185,952,065.37

Finding the Fourth Proportional to 768,218,753.80, 1,152,331,120.41 and 185,952,065.37

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Solution

The fourth proportional to 768,218,753.80, 1,152,331,120.41 and 185,952,065.37 is: 278,928,821.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,218,753.80 : 1,152,331,120.41 = 185,952,065.37 : x
  2. Step 2: Convert to fraction form
    768,218,753.80/1,152,331,120.41 = 185,952,065.37/x
  3. Step 3: Cross multiply
    768,218,753.80x = 1,152,331,120.41 × 185,952,065.37
  4. Step 4: Simplify right side
    768,218,753.80x = 214,278,351,830,365,696
  5. Step 5: Solve for x
    x = 214,278,351,830,365,696/768,218,753.80
  6. Step 6: Final answer
    x = 278,928,821.73

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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.