Home / 18,693,091.20-28,039,636.80-10,190,035.20

Finding the Fourth Proportional to 18,693,091.20, 28,039,636.80 and 10,190,035.20

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Solution

The fourth proportional to 18,693,091.20, 28,039,636.80 and 10,190,035.20 is: 15,285,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,091.20 : 28,039,636.80 = 10,190,035.20 : x
  2. Step 2: Convert to fraction form
    18,693,091.20/28,039,636.80 = 10,190,035.20/x
  3. Step 3: Cross multiply
    18,693,091.20x = 28,039,636.80 × 10,190,035.20
  4. Step 4: Simplify right side
    18,693,091.20x = 285,724,885,987,215.38
  5. Step 5: Solve for x
    x = 285,724,885,987,215.38/18,693,091.20
  6. Step 6: Final answer
    x = 15,285,052.80

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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.