Home / 1,227,561,218.64-1,842,505,949.84-759,807,729.61

Finding the Fourth Proportional to 1,227,561,218.64, 1,842,505,949.84 and 759,807,729.61

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Solution

The fourth proportional to 1,227,561,218.64, 1,842,505,949.84 and 759,807,729.61 is: 1,140,432,135.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,561,218.64 : 1,842,505,949.84 = 759,807,729.61 : x
  2. Step 2: Convert to fraction form
    1,227,561,218.64/1,842,505,949.84 = 759,807,729.61/x
  3. Step 3: Cross multiply
    1,227,561,218.64x = 1,842,505,949.84 × 759,807,729.61
  4. Step 4: Simplify right side
    1,227,561,218.64x = 1,399,950,262,532,404,992
  5. Step 5: Solve for x
    x = 1,399,950,262,532,404,992/1,227,561,218.64
  6. Step 6: Final answer
    x = 1,140,432,135.91

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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.