Home / 19,508,769.40-29,231,661.30-12,307,415.80

Finding the Fourth Proportional to 19,508,769.40, 29,231,661.30 and 12,307,415.80

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Solution

The fourth proportional to 19,508,769.40, 29,231,661.30 and 12,307,415.80 is: 18,441,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508,769.40 : 29,231,661.30 = 12,307,415.80 : x
  2. Step 2: Convert to fraction form
    19,508,769.40/29,231,661.30 = 12,307,415.80/x
  3. Step 3: Cross multiply
    19,508,769.40x = 29,231,661.30 × 12,307,415.80
  4. Step 4: Simplify right side
    19,508,769.40x = 359,766,210,143,868.56
  5. Step 5: Solve for x
    x = 359,766,210,143,868.56/19,508,769.40
  6. Step 6: Final answer
    x = 18,441,255.97

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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.