Home / 419,181,118.12-578,473,892.94-231,016,187.12

Finding the Fourth Proportional to 419,181,118.12, 578,473,892.94 and 231,016,187.12

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Solution

The fourth proportional to 419,181,118.12, 578,473,892.94 and 231,016,187.12 is: 318,804,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,181,118.12 : 578,473,892.94 = 231,016,187.12 : x
  2. Step 2: Convert to fraction form
    419,181,118.12/578,473,892.94 = 231,016,187.12/x
  3. Step 3: Cross multiply
    419,181,118.12x = 578,473,892.94 × 231,016,187.12
  4. Step 4: Simplify right side
    419,181,118.12x = 133,636,833,096,740,304
  5. Step 5: Solve for x
    x = 133,636,833,096,740,304/419,181,118.12
  6. Step 6: Final answer
    x = 318,804,515.09

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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.