Home / 18,888,934.35-28,340,399.93-18,189,094.35

Finding the Fourth Proportional to 18,888,934.35, 28,340,399.93 and 18,189,094.35

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Solution

The fourth proportional to 18,888,934.35, 28,340,399.93 and 18,189,094.35 is: 27,290,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,934.35 : 28,340,399.93 = 18,189,094.35 : x
  2. Step 2: Convert to fraction form
    18,888,934.35/28,340,399.93 = 18,189,094.35/x
  3. Step 3: Cross multiply
    18,888,934.35x = 28,340,399.93 × 18,189,094.35
  4. Step 4: Simplify right side
    18,888,934.35x = 515,486,208,243,503.44
  5. Step 5: Solve for x
    x = 515,486,208,243,503.44/18,888,934.35
  6. Step 6: Final answer
    x = 27,290,380.64

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1.5x scale

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.