Home / 87,040,307.34-120,111,837.12-47,879,601.03

Finding the Fourth Proportional to 87,040,307.34, 120,111,837.12 and 47,879,601.03

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Solution

The fourth proportional to 87,040,307.34, 120,111,837.12 and 47,879,601.03 is: 66,071,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,040,307.34 : 120,111,837.12 = 47,879,601.03 : x
  2. Step 2: Convert to fraction form
    87,040,307.34/120,111,837.12 = 47,879,601.03/x
  3. Step 3: Cross multiply
    87,040,307.34x = 120,111,837.12 × 47,879,601.03
  4. Step 4: Simplify right side
    87,040,307.34x = 5,750,906,840,285,945
  5. Step 5: Solve for x
    x = 5,750,906,840,285,945/87,040,307.34
  6. Step 6: Final answer
    x = 66,071,766.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.