Home / 12,619,179.60-18,928,769.40-9,035,998.80

Finding the Fourth Proportional to 12,619,179.60, 18,928,769.40 and 9,035,998.80

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Solution

The fourth proportional to 12,619,179.60, 18,928,769.40 and 9,035,998.80 is: 13,553,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619,179.60 : 18,928,769.40 = 9,035,998.80 : x
  2. Step 2: Convert to fraction form
    12,619,179.60/18,928,769.40 = 9,035,998.80/x
  3. Step 3: Cross multiply
    12,619,179.60x = 18,928,769.40 × 9,035,998.80
  4. Step 4: Simplify right side
    12,619,179.60x = 171,040,337,583,876.72
  5. Step 5: Solve for x
    x = 171,040,337,583,876.72/12,619,179.60
  6. Step 6: Final answer
    x = 13,553,998.20

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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.