Home / 13,872,013.40-20,806,983.30-5,782,899.80

Finding the Fourth Proportional to 13,872,013.40, 20,806,983.30 and 5,782,899.80

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Solution

The fourth proportional to 13,872,013.40, 20,806,983.30 and 5,782,899.80 is: 8,673,917.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,013.40 : 20,806,983.30 = 5,782,899.80 : x
  2. Step 2: Convert to fraction form
    13,872,013.40/20,806,983.30 = 5,782,899.80/x
  3. Step 3: Cross multiply
    13,872,013.40x = 20,806,983.30 × 5,782,899.80
  4. Step 4: Simplify right side
    13,872,013.40x = 120,324,699,564,173.34
  5. Step 5: Solve for x
    x = 120,324,699,564,173.34/13,872,013.40
  6. Step 6: Final answer
    x = 8,673,917.48

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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.