Home / 1,189,728,026.30-1,784,592,039.45-1,109,106,458.30

Finding the Fourth Proportional to 1,189,728,026.30, 1,784,592,039.45 and 1,109,106,458.30

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Solution

The fourth proportional to 1,189,728,026.30, 1,784,592,039.45 and 1,109,106,458.30 is: 1,663,659,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,728,026.30 : 1,784,592,039.45 = 1,109,106,458.30 : x
  2. Step 2: Convert to fraction form
    1,189,728,026.30/1,784,592,039.45 = 1,109,106,458.30/x
  3. Step 3: Cross multiply
    1,189,728,026.30x = 1,784,592,039.45 × 1,109,106,458.30
  4. Step 4: Simplify right side
    1,189,728,026.30x = 1,979,302,556,384,763,392
  5. Step 5: Solve for x
    x = 1,979,302,556,384,763,392/1,189,728,026.30
  6. Step 6: Final answer
    x = 1,663,659,687.45

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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.