Home / 13,431,748.08-20,147,434.56-7,662,168.75

Finding the Fourth Proportional to 13,431,748.08, 20,147,434.56 and 7,662,168.75

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Solution

The fourth proportional to 13,431,748.08, 20,147,434.56 and 7,662,168.75 is: 11,493,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,748.08 : 20,147,434.56 = 7,662,168.75 : x
  2. Step 2: Convert to fraction form
    13,431,748.08/20,147,434.56 = 7,662,168.75/x
  3. Step 3: Cross multiply
    13,431,748.08x = 20,147,434.56 × 7,662,168.75
  4. Step 4: Simplify right side
    13,431,748.08x = 154,373,043,478,302
  5. Step 5: Solve for x
    x = 154,373,043,478,302/13,431,748.08
  6. Step 6: Final answer
    x = 11,493,146.13

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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.