Home / 1,212,794,109.80-1,819,191,164.70-1,085,815,140.20

Finding the Fourth Proportional to 1,212,794,109.80, 1,819,191,164.70 and 1,085,815,140.20

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Solution

The fourth proportional to 1,212,794,109.80, 1,819,191,164.70 and 1,085,815,140.20 is: 1,628,722,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,794,109.80 : 1,819,191,164.70 = 1,085,815,140.20 : x
  2. Step 2: Convert to fraction form
    1,212,794,109.80/1,819,191,164.70 = 1,085,815,140.20/x
  3. Step 3: Cross multiply
    1,212,794,109.80x = 1,819,191,164.70 × 1,085,815,140.20
  4. Step 4: Simplify right side
    1,212,794,109.80x = 1,975,305,309,549,331,968
  5. Step 5: Solve for x
    x = 1,975,305,309,549,331,968/1,212,794,109.80
  6. Step 6: Final answer
    x = 1,628,722,710.30

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Double scale
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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.