Home / 21,216,600.05-29,273,800.69-12,391,046.33

Finding the Fourth Proportional to 21,216,600.05, 29,273,800.69 and 12,391,046.33

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Solution

The fourth proportional to 21,216,600.05, 29,273,800.69 and 12,391,046.33 is: 17,096,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,600.05 : 29,273,800.69 = 12,391,046.33 : x
  2. Step 2: Convert to fraction form
    21,216,600.05/29,273,800.69 = 12,391,046.33/x
  3. Step 3: Cross multiply
    21,216,600.05x = 29,273,800.69 × 12,391,046.33
  4. Step 4: Simplify right side
    21,216,600.05x = 362,733,020,604,976
  5. Step 5: Solve for x
    x = 362,733,020,604,976/21,216,600.05
  6. Step 6: Final answer
    x = 17,096,661.09

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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.