Home / 18,178,530.10-25,090,105.08-11,115,330.81

Finding the Fourth Proportional to 18,178,530.10, 25,090,105.08 and 11,115,330.81

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Solution

The fourth proportional to 18,178,530.10, 25,090,105.08 and 11,115,330.81 is: 15,341,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178,530.10 : 25,090,105.08 = 11,115,330.81 : x
  2. Step 2: Convert to fraction form
    18,178,530.10/25,090,105.08 = 11,115,330.81/x
  3. Step 3: Cross multiply
    18,178,530.10x = 25,090,105.08 × 11,115,330.81
  4. Step 4: Simplify right side
    18,178,530.10x = 278,884,817,969,456.09
  5. Step 5: Solve for x
    x = 278,884,817,969,456.09/18,178,530.10
  6. Step 6: Final answer
    x = 15,341,439.41

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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.