Home / 386,086,684,879.72-532,799,712,101.85-212,471,824,331.23

Finding the Fourth Proportional to 386,086,684,879.72, 532,799,712,101.85 and 212,471,824,331.23

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Solution

The fourth proportional to 386,086,684,879.72, 532,799,712,101.85 and 212,471,824,331.23 is: 293,211,165,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,086,684,879.72 : 532,799,712,101.85 = 212,471,824,331.23 : x
  2. Step 2: Convert to fraction form
    386,086,684,879.72/532,799,712,101.85 = 212,471,824,331.23/x
  3. Step 3: Cross multiply
    386,086,684,879.72x = 532,799,712,101.85 × 212,471,824,331.23
  4. Step 4: Simplify right side
    386,086,684,879.72x = 113,204,926,833,434,187,268,096
  5. Step 5: Solve for x
    x = 113,204,926,833,434,187,268,096/386,086,684,879.72
  6. Step 6: Final answer
    x = 293,211,165,437.37

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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.