Home / 1,200,399,120.57-1,656,724,062.00-691,664,399.18

Finding the Fourth Proportional to 1,200,399,120.57, 1,656,724,062.00 and 691,664,399.18

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Solution

The fourth proportional to 1,200,399,120.57, 1,656,724,062.00 and 691,664,399.18 is: 954,596,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,399,120.57 : 1,656,724,062.00 = 691,664,399.18 : x
  2. Step 2: Convert to fraction form
    1,200,399,120.57/1,656,724,062.00 = 691,664,399.18/x
  3. Step 3: Cross multiply
    1,200,399,120.57x = 1,656,724,062.00 × 691,664,399.18
  4. Step 4: Simplify right side
    1,200,399,120.57x = 1,145,897,052,953,037,952
  5. Step 5: Solve for x
    x = 1,145,897,052,953,037,952/1,200,399,120.57
  6. Step 6: Final answer
    x = 954,596,711.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.