Home / 13,763,690.88-18,992,817.60-7,651,747.20

Finding the Fourth Proportional to 13,763,690.88, 18,992,817.60 and 7,651,747.20

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Solution

The fourth proportional to 13,763,690.88, 18,992,817.60 and 7,651,747.20 is: 10,558,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763,690.88 : 18,992,817.60 = 7,651,747.20 : x
  2. Step 2: Convert to fraction form
    13,763,690.88/18,992,817.60 = 7,651,747.20/x
  3. Step 3: Cross multiply
    13,763,690.88x = 18,992,817.60 × 7,651,747.20
  4. Step 4: Simplify right side
    13,763,690.88x = 145,328,238,890,910.75
  5. Step 5: Solve for x
    x = 145,328,238,890,910.75/13,763,690.88
  6. Step 6: Final answer
    x = 10,558,813.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.