Home / 13,580,122.36-18,789,916.74-11,841,417.40

Finding the Fourth Proportional to 13,580,122.36, 18,789,916.74 and 11,841,417.40

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Solution

The fourth proportional to 13,580,122.36, 18,789,916.74 and 11,841,417.40 is: 16,384,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580,122.36 : 18,789,916.74 = 11,841,417.40 : x
  2. Step 2: Convert to fraction form
    13,580,122.36/18,789,916.74 = 11,841,417.40/x
  3. Step 3: Cross multiply
    13,580,122.36x = 18,789,916.74 × 11,841,417.40
  4. Step 4: Simplify right side
    13,580,122.36x = 222,499,247,029,587.25
  5. Step 5: Solve for x
    x = 222,499,247,029,587.25/13,580,122.36
  6. Step 6: Final answer
    x = 16,384,185.73

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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.