Home / 1,360,321,309.40-2,040,481,964.10-440,290,650.20

Finding the Fourth Proportional to 1,360,321,309.40, 2,040,481,964.10 and 440,290,650.20

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Solution

The fourth proportional to 1,360,321,309.40, 2,040,481,964.10 and 440,290,650.20 is: 660,435,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,321,309.40 : 2,040,481,964.10 = 440,290,650.20 : x
  2. Step 2: Convert to fraction form
    1,360,321,309.40/2,040,481,964.10 = 440,290,650.20/x
  3. Step 3: Cross multiply
    1,360,321,309.40x = 2,040,481,964.10 × 440,290,650.20
  4. Step 4: Simplify right side
    1,360,321,309.40x = 898,405,130,694,962,048
  5. Step 5: Solve for x
    x = 898,405,130,694,962,048/1,360,321,309.40
  6. Step 6: Final answer
    x = 660,435,975.30

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Half scale
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Double scale
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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.