Home / 631,416,933.66-871,361,006.51-349,178,472.36

Finding the Fourth Proportional to 631,416,933.66, 871,361,006.51 and 349,178,472.36

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Solution

The fourth proportional to 631,416,933.66, 871,361,006.51 and 349,178,472.36 is: 481,869,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,416,933.66 : 871,361,006.51 = 349,178,472.36 : x
  2. Step 2: Convert to fraction form
    631,416,933.66/871,361,006.51 = 349,178,472.36/x
  3. Step 3: Cross multiply
    631,416,933.66x = 871,361,006.51 × 349,178,472.36
  4. Step 4: Simplify right side
    631,416,933.66x = 304,260,505,125,487,936
  5. Step 5: Solve for x
    x = 304,260,505,125,487,936/631,416,933.66
  6. Step 6: Final answer
    x = 481,869,409.74

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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.