Home / 1,211,770,701.01-1,672,318,507.10-668,608,990.43

Finding the Fourth Proportional to 1,211,770,701.01, 1,672,318,507.10 and 668,608,990.43

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Solution

The fourth proportional to 1,211,770,701.01, 1,672,318,507.10 and 668,608,990.43 is: 922,721,755.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,770,701.01 : 1,672,318,507.10 = 668,608,990.43 : x
  2. Step 2: Convert to fraction form
    1,211,770,701.01/1,672,318,507.10 = 668,608,990.43/x
  3. Step 3: Cross multiply
    1,211,770,701.01x = 1,672,318,507.10 × 668,608,990.43
  4. Step 4: Simplify right side
    1,211,770,701.01x = 1,118,127,188,707,229,568
  5. Step 5: Solve for x
    x = 1,118,127,188,707,229,568/1,211,770,701.01
  6. Step 6: Final answer
    x = 922,721,755.67

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Half scale
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Double scale
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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.