Home / 385,042,481.28-577,618,616.16-126,277,954.56

Finding the Fourth Proportional to 385,042,481.28, 577,618,616.16 and 126,277,954.56

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Solution

The fourth proportional to 385,042,481.28, 577,618,616.16 and 126,277,954.56 is: 189,434,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,042,481.28 : 577,618,616.16 = 126,277,954.56 : x
  2. Step 2: Convert to fraction form
    385,042,481.28/577,618,616.16 = 126,277,954.56/x
  3. Step 3: Cross multiply
    385,042,481.28x = 577,618,616.16 × 126,277,954.56
  4. Step 4: Simplify right side
    385,042,481.28x = 72,940,497,364,462,560
  5. Step 5: Solve for x
    x = 72,940,497,364,462,560/385,042,481.28
  6. Step 6: Final answer
    x = 189,434,934.87

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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.