Home / 3,979,552,446.15-5,966,183,398.72-1,986,571,655.43

Finding the Fourth Proportional to 3,979,552,446.15, 5,966,183,398.72 and 1,986,571,655.43

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Solution

The fourth proportional to 3,979,552,446.15, 5,966,183,398.72 and 1,986,571,655.43 is: 2,978,287,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,552,446.15 : 5,966,183,398.72 = 1,986,571,655.43 : x
  2. Step 2: Convert to fraction form
    3,979,552,446.15/5,966,183,398.72 = 1,986,571,655.43/x
  3. Step 3: Cross multiply
    3,979,552,446.15x = 5,966,183,398.72 × 1,986,571,655.43
  4. Step 4: Simplify right side
    3,979,552,446.15x = 11,852,250,830,994,176,000
  5. Step 5: Solve for x
    x = 11,852,250,830,994,176,000/3,979,552,446.15
  6. Step 6: Final answer
    x = 2,978,287,380.65

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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.