Home / 20,380,823.09-28,114,816.07-12,115,006.01

Finding the Fourth Proportional to 20,380,823.09, 28,114,816.07 and 12,115,006.01

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Solution

The fourth proportional to 20,380,823.09, 28,114,816.07 and 12,115,006.01 is: 16,712,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380,823.09 : 28,114,816.07 = 12,115,006.01 : x
  2. Step 2: Convert to fraction form
    20,380,823.09/28,114,816.07 = 12,115,006.01/x
  3. Step 3: Cross multiply
    20,380,823.09x = 28,114,816.07 × 12,115,006.01
  4. Step 4: Simplify right side
    20,380,823.09x = 340,611,165,597,519.56
  5. Step 5: Solve for x
    x = 340,611,165,597,519.56/20,380,823.09
  6. Step 6: Final answer
    x = 16,712,336.11

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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.