Home / 1,026,431,986.60-1,539,647,979.90-299,420,698.60

Finding the Fourth Proportional to 1,026,431,986.60, 1,539,647,979.90 and 299,420,698.60

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Solution

The fourth proportional to 1,026,431,986.60, 1,539,647,979.90 and 299,420,698.60 is: 449,131,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,431,986.60 : 1,539,647,979.90 = 299,420,698.60 : x
  2. Step 2: Convert to fraction form
    1,026,431,986.60/1,539,647,979.90 = 299,420,698.60/x
  3. Step 3: Cross multiply
    1,026,431,986.60x = 1,539,647,979.90 × 299,420,698.60
  4. Step 4: Simplify right side
    1,026,431,986.60x = 461,002,473,739,736,832
  5. Step 5: Solve for x
    x = 461,002,473,739,736,832/1,026,431,986.60
  6. Step 6: Final answer
    x = 449,131,047.90

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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.