Home / 18,692,783.70-28,039,175.55-10,189,727.70

Finding the Fourth Proportional to 18,692,783.70, 28,039,175.55 and 10,189,727.70

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Solution

The fourth proportional to 18,692,783.70, 28,039,175.55 and 10,189,727.70 is: 15,284,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,783.70 : 28,039,175.55 = 10,189,727.70 : x
  2. Step 2: Convert to fraction form
    18,692,783.70/28,039,175.55 = 10,189,727.70/x
  3. Step 3: Cross multiply
    18,692,783.70x = 28,039,175.55 × 10,189,727.70
  4. Step 4: Simplify right side
    18,692,783.70x = 285,711,563,786,997.75
  5. Step 5: Solve for x
    x = 285,711,563,786,997.75/18,692,783.70
  6. Step 6: Final answer
    x = 15,284,591.55

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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.