Home / 384,836,628.78-577,215,221.94-261,133,531.83

Finding the Fourth Proportional to 384,836,628.78, 577,215,221.94 and 261,133,531.83

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Solution

The fourth proportional to 384,836,628.78, 577,215,221.94 and 261,133,531.83 is: 391,673,344.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,836,628.78 : 577,215,221.94 = 261,133,531.83 : x
  2. Step 2: Convert to fraction form
    384,836,628.78/577,215,221.94 = 261,133,531.83/x
  3. Step 3: Cross multiply
    384,836,628.78x = 577,215,221.94 × 261,133,531.83
  4. Step 4: Simplify right side
    384,836,628.78x = 150,730,249,531,229,536
  5. Step 5: Solve for x
    x = 150,730,249,531,229,536/384,836,628.78
  6. Step 6: Final answer
    x = 391,673,344.63

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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.