Home / 20,331,930.69-28,058,407.02-11,165,426.37

Finding the Fourth Proportional to 20,331,930.69, 28,058,407.02 and 11,165,426.37

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Solution

The fourth proportional to 20,331,930.69, 28,058,407.02 and 11,165,426.37 is: 15,408,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,930.69 : 28,058,407.02 = 11,165,426.37 : x
  2. Step 2: Convert to fraction form
    20,331,930.69/28,058,407.02 = 11,165,426.37/x
  3. Step 3: Cross multiply
    20,331,930.69x = 28,058,407.02 × 11,165,426.37
  4. Step 4: Simplify right side
    20,331,930.69x = 313,284,077,641,301.06
  5. Step 5: Solve for x
    x = 313,284,077,641,301.06/20,331,930.69
  6. Step 6: Final answer
    x = 15,408,476.57

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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.