Home / 1,225,863,313.20-1,691,727,100.52-668,982,231.76

Finding the Fourth Proportional to 1,225,863,313.20, 1,691,727,100.52 and 668,982,231.76

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Solution

The fourth proportional to 1,225,863,313.20, 1,691,727,100.52 and 668,982,231.76 is: 923,214,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,863,313.20 : 1,691,727,100.52 = 668,982,231.76 : x
  2. Step 2: Convert to fraction form
    1,225,863,313.20/1,691,727,100.52 = 668,982,231.76/x
  3. Step 3: Cross multiply
    1,225,863,313.20x = 1,691,727,100.52 × 668,982,231.76
  4. Step 4: Simplify right side
    1,225,863,313.20x = 1,131,735,371,234,743,424
  5. Step 5: Solve for x
    x = 1,131,735,371,234,743,424/1,225,863,313.20
  6. Step 6: Final answer
    x = 923,214,977.60

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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.