Home / 518,614,173.52-777,922,589.49-211,906,285.18

Finding the Fourth Proportional to 518,614,173.52, 777,922,589.49 and 211,906,285.18

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Solution

The fourth proportional to 518,614,173.52, 777,922,589.49 and 211,906,285.18 is: 317,859,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,614,173.52 : 777,922,589.49 = 211,906,285.18 : x
  2. Step 2: Convert to fraction form
    518,614,173.52/777,922,589.49 = 211,906,285.18/x
  3. Step 3: Cross multiply
    518,614,173.52x = 777,922,589.49 × 211,906,285.18
  4. Step 4: Simplify right side
    518,614,173.52x = 164,846,686,093,692,576
  5. Step 5: Solve for x
    x = 164,846,686,093,692,576/518,614,173.52
  6. Step 6: Final answer
    x = 317,859,970.88

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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.