Home / 1,891,177,365.70-2,836,766,048.55-664,345,817.20

Finding the Fourth Proportional to 1,891,177,365.70, 2,836,766,048.55 and 664,345,817.20

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Solution

The fourth proportional to 1,891,177,365.70, 2,836,766,048.55 and 664,345,817.20 is: 996,518,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,177,365.70 : 2,836,766,048.55 = 664,345,817.20 : x
  2. Step 2: Convert to fraction form
    1,891,177,365.70/2,836,766,048.55 = 664,345,817.20/x
  3. Step 3: Cross multiply
    1,891,177,365.70x = 2,836,766,048.55 × 664,345,817.20
  4. Step 4: Simplify right side
    1,891,177,365.70x = 1,884,593,658,729,164,800
  5. Step 5: Solve for x
    x = 1,884,593,658,729,164,800/1,891,177,365.70
  6. Step 6: Final answer
    x = 996,518,725.80

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Double scale
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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.