Home / 279,077,042.25-385,126,318.31-155,346,948.63

Finding the Fourth Proportional to 279,077,042.25, 385,126,318.31 and 155,346,948.63

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Solution

The fourth proportional to 279,077,042.25, 385,126,318.31 and 155,346,948.63 is: 214,378,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,077,042.25 : 385,126,318.31 = 155,346,948.63 : x
  2. Step 2: Convert to fraction form
    279,077,042.25/385,126,318.31 = 155,346,948.63/x
  3. Step 3: Cross multiply
    279,077,042.25x = 385,126,318.31 × 155,346,948.63
  4. Step 4: Simplify right side
    279,077,042.25x = 59,828,198,385,787,864
  5. Step 5: Solve for x
    x = 59,828,198,385,787,864/279,077,042.25
  6. Step 6: Final answer
    x = 214,378,789.11

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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.