Home / 13,187,793.60-19,781,690.40-11,886,091.20

Finding the Fourth Proportional to 13,187,793.60, 19,781,690.40 and 11,886,091.20

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Solution

The fourth proportional to 13,187,793.60, 19,781,690.40 and 11,886,091.20 is: 17,829,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,793.60 : 19,781,690.40 = 11,886,091.20 : x
  2. Step 2: Convert to fraction form
    13,187,793.60/19,781,690.40 = 11,886,091.20/x
  3. Step 3: Cross multiply
    13,187,793.60x = 19,781,690.40 × 11,886,091.20
  4. Step 4: Simplify right side
    13,187,793.60x = 235,126,976,184,564.44
  5. Step 5: Solve for x
    x = 235,126,976,184,564.44/13,187,793.60
  6. Step 6: Final answer
    x = 17,829,136.80

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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.