Home / 1,189,728,039.80-1,784,592,059.70-1,109,106,471.80

Finding the Fourth Proportional to 1,189,728,039.80, 1,784,592,059.70 and 1,109,106,471.80

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Solution

The fourth proportional to 1,189,728,039.80, 1,784,592,059.70 and 1,109,106,471.80 is: 1,663,659,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,728,039.80 : 1,784,592,059.70 = 1,109,106,471.80 : x
  2. Step 2: Convert to fraction form
    1,189,728,039.80/1,784,592,059.70 = 1,109,106,471.80/x
  3. Step 3: Cross multiply
    1,189,728,039.80x = 1,784,592,059.70 × 1,109,106,471.80
  4. Step 4: Simplify right side
    1,189,728,039.80x = 1,979,302,602,936,162,048
  5. Step 5: Solve for x
    x = 1,979,302,602,936,162,048/1,189,728,039.80
  6. Step 6: Final answer
    x = 1,663,659,707.70

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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.