Home / 279,133,261.85-418,745,374.99-82,416,561.21

Finding the Fourth Proportional to 279,133,261.85, 418,745,374.99 and 82,416,561.21

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Solution

The fourth proportional to 279,133,261.85, 418,745,374.99 and 82,416,561.21 is: 123,638,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,133,261.85 : 418,745,374.99 = 82,416,561.21 : x
  2. Step 2: Convert to fraction form
    279,133,261.85/418,745,374.99 = 82,416,561.21/x
  3. Step 3: Cross multiply
    279,133,261.85x = 418,745,374.99 × 82,416,561.21
  4. Step 4: Simplify right side
    279,133,261.85x = 34,511,553,829,061,696
  5. Step 5: Solve for x
    x = 34,511,553,829,061,696/279,133,261.85
  6. Step 6: Final answer
    x = 123,638,270.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.