Home / 393,873,311.52-543,546,833.76-215,260,846.56

Finding the Fourth Proportional to 393,873,311.52, 543,546,833.76 and 215,260,846.56

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Solution

The fourth proportional to 393,873,311.52, 543,546,833.76 and 215,260,846.56 is: 297,060,877.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,873,311.52 : 543,546,833.76 = 215,260,846.56 : x
  2. Step 2: Convert to fraction form
    393,873,311.52/543,546,833.76 = 215,260,846.56/x
  3. Step 3: Cross multiply
    393,873,311.52x = 543,546,833.76 × 215,260,846.56
  4. Step 4: Simplify right side
    393,873,311.52x = 117,004,351,580,185,184
  5. Step 5: Solve for x
    x = 117,004,351,580,185,184/393,873,311.52
  6. Step 6: Final answer
    x = 297,060,877.59

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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.