Home / 18,871,063.55-28,269,601.99-9,779,125.22

Finding the Fourth Proportional to 18,871,063.55, 28,269,601.99 and 9,779,125.22

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Solution

The fourth proportional to 18,871,063.55, 28,269,601.99 and 9,779,125.22 is: 14,649,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,063.55 : 28,269,601.99 = 9,779,125.22 : x
  2. Step 2: Convert to fraction form
    18,871,063.55/28,269,601.99 = 9,779,125.22/x
  3. Step 3: Cross multiply
    18,871,063.55x = 28,269,601.99 × 9,779,125.22
  4. Step 4: Simplify right side
    18,871,063.55x = 276,451,977,906,511.59
  5. Step 5: Solve for x
    x = 276,451,977,906,511.59/18,871,063.55
  6. Step 6: Final answer
    x = 14,649,517.61

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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.