Home / 1,259,819,190.40-1,889,728,785.60-999,625,676.80

Finding the Fourth Proportional to 1,259,819,190.40, 1,889,728,785.60 and 999,625,676.80

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Solution

The fourth proportional to 1,259,819,190.40, 1,889,728,785.60 and 999,625,676.80 is: 1,499,438,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,819,190.40 : 1,889,728,785.60 = 999,625,676.80 : x
  2. Step 2: Convert to fraction form
    1,259,819,190.40/1,889,728,785.60 = 999,625,676.80/x
  3. Step 3: Cross multiply
    1,259,819,190.40x = 1,889,728,785.60 × 999,625,676.80
  4. Step 4: Simplify right side
    1,259,819,190.40x = 1,889,021,416,273,841,920
  5. Step 5: Solve for x
    x = 1,889,021,416,273,841,920/1,259,819,190.40
  6. Step 6: Final answer
    x = 1,499,438,515.20

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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.