Home / 12,139,081.70-18,217,611.11-5,749,353.86

Finding the Fourth Proportional to 12,139,081.70, 18,217,611.11 and 5,749,353.86

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Solution

The fourth proportional to 12,139,081.70, 18,217,611.11 and 5,749,353.86 is: 8,628,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,081.70 : 18,217,611.11 = 5,749,353.86 : x
  2. Step 2: Convert to fraction form
    12,139,081.70/18,217,611.11 = 5,749,353.86/x
  3. Step 3: Cross multiply
    12,139,081.70x = 18,217,611.11 × 5,749,353.86
  4. Step 4: Simplify right side
    12,139,081.70x = 104,739,492,635,422.58
  5. Step 5: Solve for x
    x = 104,739,492,635,422.58/12,139,081.70
  6. Step 6: Final answer
    x = 8,628,287.98

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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.