Home / 13,247,997.80-19,871,996.70-12,408,189.80

Finding the Fourth Proportional to 13,247,997.80, 19,871,996.70 and 12,408,189.80

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Solution

The fourth proportional to 13,247,997.80, 19,871,996.70 and 12,408,189.80 is: 18,612,284.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,997.80 : 19,871,996.70 = 12,408,189.80 : x
  2. Step 2: Convert to fraction form
    13,247,997.80/19,871,996.70 = 12,408,189.80/x
  3. Step 3: Cross multiply
    13,247,997.80x = 19,871,996.70 × 12,408,189.80
  4. Step 4: Simplify right side
    13,247,997.80x = 246,575,506,758,573.66
  5. Step 5: Solve for x
    x = 246,575,506,758,573.66/13,247,997.80
  6. Step 6: Final answer
    x = 18,612,284.70

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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.