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Finding the Fourth Proportional to 414,056,878.80, 620,557,813.80 and 220,061,230.80

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Solution

The fourth proportional to 414,056,878.80, 620,557,813.80 and 220,061,230.80 is: 329,811,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,056,878.80 : 620,557,813.80 = 220,061,230.80 : x
  2. Step 2: Convert to fraction form
    414,056,878.80/620,557,813.80 = 220,061,230.80/x
  3. Step 3: Cross multiply
    414,056,878.80x = 620,557,813.80 × 220,061,230.80
  4. Step 4: Simplify right side
    414,056,878.80x = 136,560,716,287,385,216
  5. Step 5: Solve for x
    x = 136,560,716,287,385,216/414,056,878.80
  6. Step 6: Final answer
    x = 329,811,490.35

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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.