Home / 20,810,654,727.47-28,718,724,778.31-11,295,208,438.63

Finding the Fourth Proportional to 20,810,654,727.47, 28,718,724,778.31 and 11,295,208,438.63

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Solution

The fourth proportional to 20,810,654,727.47, 28,718,724,778.31 and 11,295,208,438.63 is: 15,587,399,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,654,727.47 : 28,718,724,778.31 = 11,295,208,438.63 : x
  2. Step 2: Convert to fraction form
    20,810,654,727.47/28,718,724,778.31 = 11,295,208,438.63/x
  3. Step 3: Cross multiply
    20,810,654,727.47x = 28,718,724,778.31 × 11,295,208,438.63
  4. Step 4: Simplify right side
    20,810,654,727.47x = 324,383,982,462,624,727,040
  5. Step 5: Solve for x
    x = 324,383,982,462,624,727,040/20,810,654,727.47
  6. Step 6: Final answer
    x = 15,587,399,181.37

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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.