Home / 15,243,653,156.92-21,036,809,078.31-9,140,999,286.07

Finding the Fourth Proportional to 15,243,653,156.92, 21,036,809,078.31 and 9,140,999,286.07

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Solution

The fourth proportional to 15,243,653,156.92, 21,036,809,078.31 and 9,140,999,286.07 is: 12,614,919,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243,653,156.92 : 21,036,809,078.31 = 9,140,999,286.07 : x
  2. Step 2: Convert to fraction form
    15,243,653,156.92/21,036,809,078.31 = 9,140,999,286.07/x
  3. Step 3: Cross multiply
    15,243,653,156.92x = 21,036,809,078.31 × 9,140,999,286.07
  4. Step 4: Simplify right side
    15,243,653,156.92x = 192,297,456,766,022,615,040
  5. Step 5: Solve for x
    x = 192,297,456,766,022,615,040/15,243,653,156.92
  6. Step 6: Final answer
    x = 12,614,919,454.44

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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.