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Finding the Fourth Proportional to 664,959,813.60, 997,534,198.80 and 204,850,005.60

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Solution

The fourth proportional to 664,959,813.60, 997,534,198.80 and 204,850,005.60 is: 307,304,113.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,959,813.60 : 997,534,198.80 = 204,850,005.60 : x
  2. Step 2: Convert to fraction form
    664,959,813.60/997,534,198.80 = 204,850,005.60/x
  3. Step 3: Cross multiply
    664,959,813.60x = 997,534,198.80 × 204,850,005.60
  4. Step 4: Simplify right side
    664,959,813.60x = 204,344,886,210,371,488
  5. Step 5: Solve for x
    x = 204,344,886,210,371,488/664,959,813.60
  6. Step 6: Final answer
    x = 307,304,113.77

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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.