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Finding the Fourth Proportional to 269,059,405.92, 371,301,978 and 145,300,072.08

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Solution

The fourth proportional to 269,059,405.92, 371,301,978 and 145,300,072.08 is: 200,514,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,059,405.92 : 371,301,978 = 145,300,072.08 : x
  2. Step 2: Convert to fraction form
    269,059,405.92/371,301,978 = 145,300,072.08/x
  3. Step 3: Cross multiply
    269,059,405.92x = 371,301,978 × 145,300,072.08
  4. Step 4: Simplify right side
    269,059,405.92x = 53,950,204,166,846,576
  5. Step 5: Solve for x
    x = 53,950,204,166,846,576/269,059,405.92
  6. Step 6: Final answer
    x = 200,514,098.30

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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.