Home / 520,521,410.97-780,399,478.89-248,083,496.73

Finding the Fourth Proportional to 520,521,410.97, 780,399,478.89 and 248,083,496.73

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Solution

The fourth proportional to 520,521,410.97, 780,399,478.89 and 248,083,496.73 is: 371,942,877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,521,410.97 : 780,399,478.89 = 248,083,496.73 : x
  2. Step 2: Convert to fraction form
    520,521,410.97/780,399,478.89 = 248,083,496.73/x
  3. Step 3: Cross multiply
    520,521,410.97x = 780,399,478.89 × 248,083,496.73
  4. Step 4: Simplify right side
    520,521,410.97x = 193,604,231,569,300,992
  5. Step 5: Solve for x
    x = 193,604,231,569,300,992/520,521,410.97
  6. Step 6: Final answer
    x = 371,942,877.83

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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.