Home / 517,268,768.64-776,005,366.20-189,747,322.80

Finding the Fourth Proportional to 517,268,768.64, 776,005,366.20 and 189,747,322.80

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Solution

The fourth proportional to 517,268,768.64, 776,005,366.20 and 189,747,322.80 is: 284,658,478.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,268,768.64 : 776,005,366.20 = 189,747,322.80 : x
  2. Step 2: Convert to fraction form
    517,268,768.64/776,005,366.20 = 189,747,322.80/x
  3. Step 3: Cross multiply
    517,268,768.64x = 776,005,366.20 × 189,747,322.80
  4. Step 4: Simplify right side
    517,268,768.64x = 147,244,940,714,883,616
  5. Step 5: Solve for x
    x = 147,244,940,714,883,616/517,268,768.64
  6. Step 6: Final answer
    x = 284,658,478.61

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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.