Home / 1,311,005,996.82-1,809,167,161.86-716,277,711.11

Finding the Fourth Proportional to 1,311,005,996.82, 1,809,167,161.86 and 716,277,711.11

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Solution

The fourth proportional to 1,311,005,996.82, 1,809,167,161.86 and 716,277,711.11 is: 988,451,705.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,005,996.82 : 1,809,167,161.86 = 716,277,711.11 : x
  2. Step 2: Convert to fraction form
    1,311,005,996.82/1,809,167,161.86 = 716,277,711.11/x
  3. Step 3: Cross multiply
    1,311,005,996.82x = 1,809,167,161.86 × 716,277,711.11
  4. Step 4: Simplify right side
    1,311,005,996.82x = 1,295,866,113,703,409,920
  5. Step 5: Solve for x
    x = 1,295,866,113,703,409,920/1,311,005,996.82
  6. Step 6: Final answer
    x = 988,451,705.67

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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.