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Finding the Fourth Proportional to 269,952,012.60, 404,928,018.90 and 178,119,007.80

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Solution

The fourth proportional to 269,952,012.60, 404,928,018.90 and 178,119,007.80 is: 267,178,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,952,012.60 : 404,928,018.90 = 178,119,007.80 : x
  2. Step 2: Convert to fraction form
    269,952,012.60/404,928,018.90 = 178,119,007.80/x
  3. Step 3: Cross multiply
    269,952,012.60x = 404,928,018.90 × 178,119,007.80
  4. Step 4: Simplify right side
    269,952,012.60x = 72,125,376,956,887,648
  5. Step 5: Solve for x
    x = 72,125,376,956,887,648/269,952,012.60
  6. Step 6: Final answer
    x = 267,178,511.70

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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.