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Finding the Fourth Proportional to 269,636,866.86, 404,097,745.35 and 138,473,844.30

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Solution

The fourth proportional to 269,636,866.86, 404,097,745.35 and 138,473,844.30 is: 207,527,141.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,636,866.86 : 404,097,745.35 = 138,473,844.30 : x
  2. Step 2: Convert to fraction form
    269,636,866.86/404,097,745.35 = 138,473,844.30/x
  3. Step 3: Cross multiply
    269,636,866.86x = 404,097,745.35 × 138,473,844.30
  4. Step 4: Simplify right side
    269,636,866.86x = 55,956,968,271,576,960
  5. Step 5: Solve for x
    x = 55,956,968,271,576,960/269,636,866.86
  6. Step 6: Final answer
    x = 207,527,141.68

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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.