Home / 520,986,500.33-781,313,833.71-171,151,364.21

Finding the Fourth Proportional to 520,986,500.33, 781,313,833.71 and 171,151,364.21

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Solution

The fourth proportional to 520,986,500.33, 781,313,833.71 and 171,151,364.21 is: 256,672,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,986,500.33 : 781,313,833.71 = 171,151,364.21 : x
  2. Step 2: Convert to fraction form
    520,986,500.33/781,313,833.71 = 171,151,364.21/x
  3. Step 3: Cross multiply
    520,986,500.33x = 781,313,833.71 × 171,151,364.21
  4. Step 4: Simplify right side
    520,986,500.33x = 133,722,928,511,705,040
  5. Step 5: Solve for x
    x = 133,722,928,511,705,040/520,986,500.33
  6. Step 6: Final answer
    x = 256,672,540.32

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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.