Home / 21,247,751,252.87-31,882,657,322.20-8,665,840,405.38

Finding the Fourth Proportional to 21,247,751,252.87, 31,882,657,322.20 and 8,665,840,405.38

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Solution

The fourth proportional to 21,247,751,252.87, 31,882,657,322.20 and 8,665,840,405.38 is: 13,003,259,345.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247,751,252.87 : 31,882,657,322.20 = 8,665,840,405.38 : x
  2. Step 2: Convert to fraction form
    21,247,751,252.87/31,882,657,322.20 = 8,665,840,405.38/x
  3. Step 3: Cross multiply
    21,247,751,252.87x = 31,882,657,322.20 × 8,665,840,405.38
  4. Step 4: Simplify right side
    21,247,751,252.87x = 276,290,020,053,561,901,056
  5. Step 5: Solve for x
    x = 276,290,020,053,561,901,056/21,247,751,252.87
  6. Step 6: Final answer
    x = 13,003,259,345.68

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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.