Home / 18,388,147.23-25,353,158.36-11,500,671.87

Finding the Fourth Proportional to 18,388,147.23, 25,353,158.36 and 11,500,671.87

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Solution

The fourth proportional to 18,388,147.23, 25,353,158.36 and 11,500,671.87 is: 15,856,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388,147.23 : 25,353,158.36 = 11,500,671.87 : x
  2. Step 2: Convert to fraction form
    18,388,147.23/25,353,158.36 = 11,500,671.87/x
  3. Step 3: Cross multiply
    18,388,147.23x = 25,353,158.36 × 11,500,671.87
  4. Step 4: Simplify right side
    18,388,147.23x = 291,578,355,109,003.94
  5. Step 5: Solve for x
    x = 291,578,355,109,003.94/18,388,147.23
  6. Step 6: Final answer
    x = 15,856,864.29

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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.