Home / 13,187,824.60-19,781,736.90-11,886,122.20

Finding the Fourth Proportional to 13,187,824.60, 19,781,736.90 and 11,886,122.20

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Solution

The fourth proportional to 13,187,824.60, 19,781,736.90 and 11,886,122.20 is: 17,829,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,824.60 : 19,781,736.90 = 11,886,122.20 : x
  2. Step 2: Convert to fraction form
    13,187,824.60/19,781,736.90 = 11,886,122.20/x
  3. Step 3: Cross multiply
    13,187,824.60x = 19,781,736.90 × 11,886,122.20
  4. Step 4: Simplify right side
    13,187,824.60x = 235,128,142,121,649.16
  5. Step 5: Solve for x
    x = 235,128,142,121,649.16/13,187,824.60
  6. Step 6: Final answer
    x = 17,829,183.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.