Home / 312,663,148.80-468,994,723.20-266,305,747.20

Finding the Fourth Proportional to 312,663,148.80, 468,994,723.20 and 266,305,747.20

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Solution

The fourth proportional to 312,663,148.80, 468,994,723.20 and 266,305,747.20 is: 399,458,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,663,148.80 : 468,994,723.20 = 266,305,747.20 : x
  2. Step 2: Convert to fraction form
    312,663,148.80/468,994,723.20 = 266,305,747.20/x
  3. Step 3: Cross multiply
    312,663,148.80x = 468,994,723.20 × 266,305,747.20
  4. Step 4: Simplify right side
    312,663,148.80x = 124,895,990,194,633,168
  5. Step 5: Solve for x
    x = 124,895,990,194,633,168/312,663,148.80
  6. Step 6: Final answer
    x = 399,458,620.80

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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.