Home / 12,227,845.40-18,341,756.05-3,129,928.48

Finding the Fourth Proportional to 12,227,845.40, 18,341,756.05 and 3,129,928.48

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Solution

The fourth proportional to 12,227,845.40, 18,341,756.05 and 3,129,928.48 is: 4,694,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227,845.40 : 18,341,756.05 = 3,129,928.48 : x
  2. Step 2: Convert to fraction form
    12,227,845.40/18,341,756.05 = 3,129,928.48/x
  3. Step 3: Cross multiply
    12,227,845.40x = 18,341,756.05 × 3,129,928.48
  4. Step 4: Simplify right side
    12,227,845.40x = 57,408,384,618,457.66
  5. Step 5: Solve for x
    x = 57,408,384,618,457.66/12,227,845.40
  6. Step 6: Final answer
    x = 4,694,889.63

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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.