Home / 386,587,982.40-533,491,502.40-212,747,726.40

Finding the Fourth Proportional to 386,587,982.40, 533,491,502.40 and 212,747,726.40

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Solution

The fourth proportional to 386,587,982.40, 533,491,502.40 and 212,747,726.40 is: 293,591,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,587,982.40 : 533,491,502.40 = 212,747,726.40 : x
  2. Step 2: Convert to fraction form
    386,587,982.40/533,491,502.40 = 212,747,726.40/x
  3. Step 3: Cross multiply
    386,587,982.40x = 533,491,502.40 × 212,747,726.40
  4. Step 4: Simplify right side
    386,587,982.40x = 113,499,104,189,320,144
  5. Step 5: Solve for x
    x = 113,499,104,189,320,144/386,587,982.40
  6. Step 6: Final answer
    x = 293,591,910.14

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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.