Home / 518,150,384.64-776,747,281.92-259,140,218.88

Finding the Fourth Proportional to 518,150,384.64, 776,747,281.92 and 259,140,218.88

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Solution

The fourth proportional to 518,150,384.64, 776,747,281.92 and 259,140,218.88 is: 388,471,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,150,384.64 : 776,747,281.92 = 259,140,218.88 : x
  2. Step 2: Convert to fraction form
    518,150,384.64/776,747,281.92 = 259,140,218.88/x
  3. Step 3: Cross multiply
    518,150,384.64x = 776,747,281.92 × 259,140,218.88
  4. Step 4: Simplify right side
    518,150,384.64x = 201,286,460,651,193,856
  5. Step 5: Solve for x
    x = 201,286,460,651,193,856/518,150,384.64
  6. Step 6: Final answer
    x = 388,471,120.78

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1.5x scale

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.