Home / 25,789,040,020.40-38,683,560,030.60-20,177,778,887.60

Finding the Fourth Proportional to 25,789,040,020.40, 38,683,560,030.60 and 20,177,778,887.60

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Solution

The fourth proportional to 25,789,040,020.40, 38,683,560,030.60 and 20,177,778,887.60 is: 30,266,668,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789,040,020.40 : 38,683,560,030.60 = 20,177,778,887.60 : x
  2. Step 2: Convert to fraction form
    25,789,040,020.40/38,683,560,030.60 = 20,177,778,887.60/x
  3. Step 3: Cross multiply
    25,789,040,020.40x = 38,683,560,030.60 × 20,177,778,887.60
  4. Step 4: Simplify right side
    25,789,040,020.40x = 780,548,320,882,647,760,896
  5. Step 5: Solve for x
    x = 780,548,320,882,647,760,896/25,789,040,020.40
  6. Step 6: Final answer
    x = 30,266,668,331.40

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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.