Home / 1,189,728,356.80-1,784,592,535.20-1,155,716,132.80

Finding the Fourth Proportional to 1,189,728,356.80, 1,784,592,535.20 and 1,155,716,132.80

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Solution

The fourth proportional to 1,189,728,356.80, 1,784,592,535.20 and 1,155,716,132.80 is: 1,733,574,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,728,356.80 : 1,784,592,535.20 = 1,155,716,132.80 : x
  2. Step 2: Convert to fraction form
    1,189,728,356.80/1,784,592,535.20 = 1,155,716,132.80/x
  3. Step 3: Cross multiply
    1,189,728,356.80x = 1,784,592,535.20 × 1,155,716,132.80
  4. Step 4: Simplify right side
    1,189,728,356.80x = 2,062,482,383,405,091,840
  5. Step 5: Solve for x
    x = 2,062,482,383,405,091,840/1,189,728,356.80
  6. Step 6: Final answer
    x = 1,733,574,199.20

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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.