Home / 279,165,705.35-418,554,642.08-123,634,760.63

Finding the Fourth Proportional to 279,165,705.35, 418,554,642.08 and 123,634,760.63

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Solution

The fourth proportional to 279,165,705.35, 418,554,642.08 and 123,634,760.63 is: 185,366,260.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,165,705.35 : 418,554,642.08 = 123,634,760.63 : x
  2. Step 2: Convert to fraction form
    279,165,705.35/418,554,642.08 = 123,634,760.63/x
  3. Step 3: Cross multiply
    279,165,705.35x = 418,554,642.08 × 123,634,760.63
  4. Step 4: Simplify right side
    279,165,705.35x = 51,747,902,982,352,440
  5. Step 5: Solve for x
    x = 51,747,902,982,352,440/279,165,705.35
  6. Step 6: Final answer
    x = 185,366,260.94

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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.