Home / 21,305,490.60-29,401,706.79-11,515,909.98

Finding the Fourth Proportional to 21,305,490.60, 29,401,706.79 and 11,515,909.98

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Solution

The fourth proportional to 21,305,490.60, 29,401,706.79 and 11,515,909.98 is: 15,892,025.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305,490.60 : 29,401,706.79 = 11,515,909.98 : x
  2. Step 2: Convert to fraction form
    21,305,490.60/29,401,706.79 = 11,515,909.98/x
  3. Step 3: Cross multiply
    21,305,490.60x = 29,401,706.79 × 11,515,909.98
  4. Step 4: Simplify right side
    21,305,490.60x = 338,587,408,651,994.75
  5. Step 5: Solve for x
    x = 338,587,408,651,994.75/21,305,490.60
  6. Step 6: Final answer
    x = 15,892,025.91

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