Home / 18,888,930.10-28,340,393.55-18,189,090.10

Finding the Fourth Proportional to 18,888,930.10, 28,340,393.55 and 18,189,090.10

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Solution

The fourth proportional to 18,888,930.10, 28,340,393.55 and 18,189,090.10 is: 27,290,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,930.10 : 28,340,393.55 = 18,189,090.10 : x
  2. Step 2: Convert to fraction form
    18,888,930.10/28,340,393.55 = 18,189,090.10/x
  3. Step 3: Cross multiply
    18,888,930.10x = 28,340,393.55 × 18,189,090.10
  4. Step 4: Simplify right side
    18,888,930.10x = 515,485,971,750,408.94
  5. Step 5: Solve for x
    x = 515,485,971,750,408.94/18,888,930.10
  6. Step 6: Final answer
    x = 27,290,374.26

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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.