Home / 13,631,843.79-18,811,997.28-7,437,029.67

Finding the Fourth Proportional to 13,631,843.79, 18,811,997.28 and 7,437,029.67

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Solution

The fourth proportional to 13,631,843.79, 18,811,997.28 and 7,437,029.67 is: 10,263,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,843.79 : 18,811,997.28 = 7,437,029.67 : x
  2. Step 2: Convert to fraction form
    13,631,843.79/18,811,997.28 = 7,437,029.67/x
  3. Step 3: Cross multiply
    13,631,843.79x = 18,811,997.28 × 7,437,029.67
  4. Step 4: Simplify right side
    13,631,843.79x = 139,905,381,923,319.31
  5. Step 5: Solve for x
    x = 139,905,381,923,319.31/13,631,843.79
  6. Step 6: Final answer
    x = 10,263,129.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.