Home / 631,416,933.91-871,361,006.85-349,178,472.61

Finding the Fourth Proportional to 631,416,933.91, 871,361,006.85 and 349,178,472.61

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Solution

The fourth proportional to 631,416,933.91, 871,361,006.85 and 349,178,472.61 is: 481,869,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,416,933.91 : 871,361,006.85 = 349,178,472.61 : x
  2. Step 2: Convert to fraction form
    631,416,933.91/871,361,006.85 = 349,178,472.61/x
  3. Step 3: Cross multiply
    631,416,933.91x = 871,361,006.85 × 349,178,472.61
  4. Step 4: Simplify right side
    631,416,933.91x = 304,260,505,463,794,752
  5. Step 5: Solve for x
    x = 304,260,505,463,794,752/631,416,933.91
  6. Step 6: Final answer
    x = 481,869,410.09

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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.