Home / 489,414,685.52-675,410,085.78-266,385,586.52

Finding the Fourth Proportional to 489,414,685.52, 675,410,085.78 and 266,385,586.52

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Solution

The fourth proportional to 489,414,685.52, 675,410,085.78 and 266,385,586.52 is: 367,621,808.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,414,685.52 : 675,410,085.78 = 266,385,586.52 : x
  2. Step 2: Convert to fraction form
    489,414,685.52/675,410,085.78 = 266,385,586.52/x
  3. Step 3: Cross multiply
    489,414,685.52x = 675,410,085.78 × 266,385,586.52
  4. Step 4: Simplify right side
    489,414,685.52x = 179,919,511,842,028,800
  5. Step 5: Solve for x
    x = 179,919,511,842,028,800/489,414,685.52
  6. Step 6: Final answer
    x = 367,621,808.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.