Home / 13,315,396.23-18,374,200.25-8,158,056.57

Finding the Fourth Proportional to 13,315,396.23, 18,374,200.25 and 8,158,056.57

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Solution

The fourth proportional to 13,315,396.23, 18,374,200.25 and 8,158,056.57 is: 11,257,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,396.23 : 18,374,200.25 = 8,158,056.57 : x
  2. Step 2: Convert to fraction form
    13,315,396.23/18,374,200.25 = 8,158,056.57/x
  3. Step 3: Cross multiply
    13,315,396.23x = 18,374,200.25 × 8,158,056.57
  4. Step 4: Simplify right side
    13,315,396.23x = 149,897,765,027,217.88
  5. Step 5: Solve for x
    x = 149,897,765,027,217.88/13,315,396.23
  6. Step 6: Final answer
    x = 11,257,476.87

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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.