Home / 419,346,380.31-578,699,758.65-231,170,544.36

Finding the Fourth Proportional to 419,346,380.31, 578,699,758.65 and 231,170,544.36

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Solution

The fourth proportional to 419,346,380.31, 578,699,758.65 and 231,170,544.36 is: 319,016,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,346,380.31 : 578,699,758.65 = 231,170,544.36 : x
  2. Step 2: Convert to fraction form
    419,346,380.31/578,699,758.65 = 231,170,544.36/x
  3. Step 3: Cross multiply
    419,346,380.31x = 578,699,758.65 × 231,170,544.36
  4. Step 4: Simplify right side
    419,346,380.31x = 133,778,338,228,121,120
  5. Step 5: Solve for x
    x = 133,778,338,228,121,120/419,346,380.31
  6. Step 6: Final answer
    x = 319,016,318.04

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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.