Home / 15,174,521.69-20,940,825.06-8,205,182.60

Finding the Fourth Proportional to 15,174,521.69, 20,940,825.06 and 8,205,182.60

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Solution

The fourth proportional to 15,174,521.69, 20,940,825.06 and 8,205,182.60 is: 11,323,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174,521.69 : 20,940,825.06 = 8,205,182.60 : x
  2. Step 2: Convert to fraction form
    15,174,521.69/20,940,825.06 = 8,205,182.60/x
  3. Step 3: Cross multiply
    15,174,521.69x = 20,940,825.06 × 8,205,182.60
  4. Step 4: Simplify right side
    15,174,521.69x = 171,823,293,307,251.81
  5. Step 5: Solve for x
    x = 171,823,293,307,251.81/15,174,521.69
  6. Step 6: Final answer
    x = 11,323,143.94

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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.