Home / 398,927,653.20-598,391,479.80-269,597,221.20

Finding the Fourth Proportional to 398,927,653.20, 598,391,479.80 and 269,597,221.20

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Solution

The fourth proportional to 398,927,653.20, 598,391,479.80 and 269,597,221.20 is: 404,395,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,927,653.20 : 598,391,479.80 = 269,597,221.20 : x
  2. Step 2: Convert to fraction form
    398,927,653.20/598,391,479.80 = 269,597,221.20/x
  3. Step 3: Cross multiply
    398,927,653.20x = 598,391,479.80 × 269,597,221.20
  4. Step 4: Simplify right side
    398,927,653.20x = 161,324,680,143,835,904
  5. Step 5: Solve for x
    x = 161,324,680,143,835,904/398,927,653.20
  6. Step 6: Final answer
    x = 404,395,831.80

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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.