Home / 19,361,605.80-29,042,408.70-12,991,506.60

Finding the Fourth Proportional to 19,361,605.80, 29,042,408.70 and 12,991,506.60

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Solution

The fourth proportional to 19,361,605.80, 29,042,408.70 and 12,991,506.60 is: 19,487,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361,605.80 : 29,042,408.70 = 12,991,506.60 : x
  2. Step 2: Convert to fraction form
    19,361,605.80/29,042,408.70 = 12,991,506.60/x
  3. Step 3: Cross multiply
    19,361,605.80x = 29,042,408.70 × 12,991,506.60
  4. Step 4: Simplify right side
    19,361,605.80x = 377,304,644,305,947.38
  5. Step 5: Solve for x
    x = 377,304,644,305,947.38/19,361,605.80
  6. Step 6: Final answer
    x = 19,487,259.90

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1.5x scale

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.