Home / 279,078,290.17-418,585,548.78-74,622,308.65

Finding the Fourth Proportional to 279,078,290.17, 418,585,548.78 and 74,622,308.65

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Solution

The fourth proportional to 279,078,290.17, 418,585,548.78 and 74,622,308.65 is: 111,924,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,078,290.17 : 418,585,548.78 = 74,622,308.65 : x
  2. Step 2: Convert to fraction form
    279,078,290.17/418,585,548.78 = 74,622,308.65/x
  3. Step 3: Cross multiply
    279,078,290.17x = 418,585,548.78 × 74,622,308.65
  4. Step 4: Simplify right side
    279,078,290.17x = 31,235,820,016,444,324
  5. Step 5: Solve for x
    x = 31,235,820,016,444,324/279,078,290.17
  6. Step 6: Final answer
    x = 111,924,936.90

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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.