Home / 25,789,040,008.40-38,683,560,012.60-20,177,778,875.60

Finding the Fourth Proportional to 25,789,040,008.40, 38,683,560,012.60 and 20,177,778,875.60

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Solution

The fourth proportional to 25,789,040,008.40, 38,683,560,012.60 and 20,177,778,875.60 is: 30,266,668,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789,040,008.40 : 38,683,560,012.60 = 20,177,778,875.60 : x
  2. Step 2: Convert to fraction form
    25,789,040,008.40/38,683,560,012.60 = 20,177,778,875.60/x
  3. Step 3: Cross multiply
    25,789,040,008.40x = 38,683,560,012.60 × 20,177,778,875.60
  4. Step 4: Simplify right side
    25,789,040,008.40x = 780,548,320,055,245,012,992
  5. Step 5: Solve for x
    x = 780,548,320,055,245,012,992/25,789,040,008.40
  6. Step 6: Final answer
    x = 30,266,668,313.40

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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.