Home / 18,440,989.92-25,424,910-15,121,052.64

Finding the Fourth Proportional to 18,440,989.92, 25,424,910 and 15,121,052.64

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Solution

The fourth proportional to 18,440,989.92, 25,424,910 and 15,121,052.64 is: 20,847,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440,989.92 : 25,424,910 = 15,121,052.64 : x
  2. Step 2: Convert to fraction form
    18,440,989.92/25,424,910 = 15,121,052.64/x
  3. Step 3: Cross multiply
    18,440,989.92x = 25,424,910 × 15,121,052.64
  4. Step 4: Simplify right side
    18,440,989.92x = 384,451,402,477,262.44
  5. Step 5: Solve for x
    x = 384,451,402,477,262.44/18,440,989.92
  6. Step 6: Final answer
    x = 20,847,655.37

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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.