Home / 18,664,153.60-27,990,175.80-7,149,008.10

Finding the Fourth Proportional to 18,664,153.60, 27,990,175.80 and 7,149,008.10

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Solution

The fourth proportional to 18,664,153.60, 27,990,175.80 and 7,149,008.10 is: 10,721,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664,153.60 : 27,990,175.80 = 7,149,008.10 : x
  2. Step 2: Convert to fraction form
    18,664,153.60/27,990,175.80 = 7,149,008.10/x
  3. Step 3: Cross multiply
    18,664,153.60x = 27,990,175.80 × 7,149,008.10
  4. Step 4: Simplify right side
    18,664,153.60x = 200,101,993,514,623.97
  5. Step 5: Solve for x
    x = 200,101,993,514,623.97/18,664,153.60
  6. Step 6: Final answer
    x = 10,721,193.03

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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.