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Finding the Fourth Proportional to 18,846,074.70, 28,269,112.05 and 9,262,932.30

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Solution

The fourth proportional to 18,846,074.70, 28,269,112.05 and 9,262,932.30 is: 13,894,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846,074.70 : 28,269,112.05 = 9,262,932.30 : x
  2. Step 2: Convert to fraction form
    18,846,074.70/28,269,112.05 = 9,262,932.30/x
  3. Step 3: Cross multiply
    18,846,074.70x = 28,269,112.05 × 9,262,932.30
  4. Step 4: Simplify right side
    18,846,074.70x = 261,854,871,100,264.25
  5. Step 5: Solve for x
    x = 261,854,871,100,264.25/18,846,074.70
  6. Step 6: Final answer
    x = 13,894,398.45

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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.