Home / 18,888,941.35-28,340,410.43-18,189,101.35

Finding the Fourth Proportional to 18,888,941.35, 28,340,410.43 and 18,189,101.35

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Solution

The fourth proportional to 18,888,941.35, 28,340,410.43 and 18,189,101.35 is: 27,290,391.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,941.35 : 28,340,410.43 = 18,189,101.35 : x
  2. Step 2: Convert to fraction form
    18,888,941.35/28,340,410.43 = 18,189,101.35/x
  3. Step 3: Cross multiply
    18,888,941.35x = 28,340,410.43 × 18,189,101.35
  4. Step 4: Simplify right side
    18,888,941.35x = 515,486,597,611,867.12
  5. Step 5: Solve for x
    x = 515,486,597,611,867.12/18,888,941.35
  6. Step 6: Final answer
    x = 27,290,391.14

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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.