Home / 18,690,172.20-27,979,271.10-11,113,237.80

Finding the Fourth Proportional to 18,690,172.20, 27,979,271.10 and 11,113,237.80

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Solution

The fourth proportional to 18,690,172.20, 27,979,271.10 and 11,113,237.80 is: 16,636,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690,172.20 : 27,979,271.10 = 11,113,237.80 : x
  2. Step 2: Convert to fraction form
    18,690,172.20/27,979,271.10 = 11,113,237.80/x
  3. Step 3: Cross multiply
    18,690,172.20x = 27,979,271.10 × 11,113,237.80
  4. Step 4: Simplify right side
    18,690,172.20x = 310,940,293,204,967.62
  5. Step 5: Solve for x
    x = 310,940,293,204,967.62/18,690,172.20
  6. Step 6: Final answer
    x = 16,636,566.53

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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.