Home / 11,239,489.20-16,859,233.80-8,405,137.20

Finding the Fourth Proportional to 11,239,489.20, 16,859,233.80 and 8,405,137.20

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Solution

The fourth proportional to 11,239,489.20, 16,859,233.80 and 8,405,137.20 is: 12,607,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239,489.20 : 16,859,233.80 = 8,405,137.20 : x
  2. Step 2: Convert to fraction form
    11,239,489.20/16,859,233.80 = 8,405,137.20/x
  3. Step 3: Cross multiply
    11,239,489.20x = 16,859,233.80 × 8,405,137.20
  4. Step 4: Simplify right side
    11,239,489.20x = 141,704,173,175,877.34
  5. Step 5: Solve for x
    x = 141,704,173,175,877.34/11,239,489.20
  6. Step 6: Final answer
    x = 12,607,705.80

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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.