Home / 20,696,876.51-28,562,943.71-11,404,435.34

Finding the Fourth Proportional to 20,696,876.51, 28,562,943.71 and 11,404,435.34

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Solution

The fourth proportional to 20,696,876.51, 28,562,943.71 and 11,404,435.34 is: 15,738,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696,876.51 : 28,562,943.71 = 11,404,435.34 : x
  2. Step 2: Convert to fraction form
    20,696,876.51/28,562,943.71 = 11,404,435.34/x
  3. Step 3: Cross multiply
    20,696,876.51x = 28,562,943.71 × 11,404,435.34
  4. Step 4: Simplify right side
    20,696,876.51x = 325,744,244,760,673.12
  5. Step 5: Solve for x
    x = 325,744,244,760,673.12/20,696,876.51
  6. Step 6: Final answer
    x = 15,738,811.83

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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.