Home / 18,643,144.18-27,966,225.39-5,179,973.62

Finding the Fourth Proportional to 18,643,144.18, 27,966,225.39 and 5,179,973.62

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Solution

The fourth proportional to 18,643,144.18, 27,966,225.39 and 5,179,973.62 is: 7,770,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643,144.18 : 27,966,225.39 = 5,179,973.62 : x
  2. Step 2: Convert to fraction form
    18,643,144.18/27,966,225.39 = 5,179,973.62/x
  3. Step 3: Cross multiply
    18,643,144.18x = 27,966,225.39 × 5,179,973.62
  4. Step 4: Simplify right side
    18,643,144.18x = 144,864,309,771,174.22
  5. Step 5: Solve for x
    x = 144,864,309,771,174.22/18,643,144.18
  6. Step 6: Final answer
    x = 7,770,379.74

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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.