Home / 386,177,821.28-532,943,612.82-218,917,324.26

Finding the Fourth Proportional to 386,177,821.28, 532,943,612.82 and 218,917,324.26

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Solution

The fourth proportional to 386,177,821.28, 532,943,612.82 and 218,917,324.26 is: 302,116,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,177,821.28 : 532,943,612.82 = 218,917,324.26 : x
  2. Step 2: Convert to fraction form
    386,177,821.28/532,943,612.82 = 218,917,324.26/x
  3. Step 3: Cross multiply
    386,177,821.28x = 532,943,612.82 × 218,917,324.26
  4. Step 4: Simplify right side
    386,177,821.28x = 116,670,589,700,011,824
  5. Step 5: Solve for x
    x = 116,670,589,700,011,824/386,177,821.28
  6. Step 6: Final answer
    x = 302,116,235.76

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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.