Home / 518,150,385.64-776,747,283.42-259,140,219.88

Finding the Fourth Proportional to 518,150,385.64, 776,747,283.42 and 259,140,219.88

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Solution

The fourth proportional to 518,150,385.64, 776,747,283.42 and 259,140,219.88 is: 388,471,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,150,385.64 : 776,747,283.42 = 259,140,219.88 : x
  2. Step 2: Convert to fraction form
    518,150,385.64/776,747,283.42 = 259,140,219.88/x
  3. Step 3: Cross multiply
    518,150,385.64x = 776,747,283.42 × 259,140,219.88
  4. Step 4: Simplify right side
    518,150,385.64x = 201,286,461,816,651,456
  5. Step 5: Solve for x
    x = 201,286,461,816,651,456/518,150,385.64
  6. Step 6: Final answer
    x = 388,471,122.27

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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.