Home / 631,416,932.91-871,361,005.47-349,178,471.61

Finding the Fourth Proportional to 631,416,932.91, 871,361,005.47 and 349,178,471.61

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Solution

The fourth proportional to 631,416,932.91, 871,361,005.47 and 349,178,471.61 is: 481,869,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,416,932.91 : 871,361,005.47 = 349,178,471.61 : x
  2. Step 2: Convert to fraction form
    631,416,932.91/871,361,005.47 = 349,178,471.61/x
  3. Step 3: Cross multiply
    631,416,932.91x = 871,361,005.47 × 349,178,471.61
  4. Step 4: Simplify right side
    631,416,932.91x = 304,260,504,110,567,488
  5. Step 5: Solve for x
    x = 304,260,504,110,567,488/631,416,932.91
  6. Step 6: Final answer
    x = 481,869,408.71

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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.