Home / 1,309,632,135.20-1,964,448,202.80-654,684,246.80

Finding the Fourth Proportional to 1,309,632,135.20, 1,964,448,202.80 and 654,684,246.80

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Solution

The fourth proportional to 1,309,632,135.20, 1,964,448,202.80 and 654,684,246.80 is: 982,026,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,632,135.20 : 1,964,448,202.80 = 654,684,246.80 : x
  2. Step 2: Convert to fraction form
    1,309,632,135.20/1,964,448,202.80 = 654,684,246.80/x
  3. Step 3: Cross multiply
    1,309,632,135.20x = 1,964,448,202.80 × 654,684,246.80
  4. Step 4: Simplify right side
    1,309,632,135.20x = 1,286,093,292,027,731,456
  5. Step 5: Solve for x
    x = 1,286,093,292,027,731,456/1,309,632,135.20
  6. Step 6: Final answer
    x = 982,026,370.20

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Half scale
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Double scale
Find fourth proportional to 1,309,632,136.20, 1,964,448,204.30 and 654,684,247.80
Similar ratio
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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.