Home / 992,499,099.40-1,489,067,513.70-665,344,019.80

Finding the Fourth Proportional to 992,499,099.40, 1,489,067,513.70 and 665,344,019.80

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Solution

The fourth proportional to 992,499,099.40, 1,489,067,513.70 and 665,344,019.80 is: 998,229,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,499,099.40 : 1,489,067,513.70 = 665,344,019.80 : x
  2. Step 2: Convert to fraction form
    992,499,099.40/1,489,067,513.70 = 665,344,019.80/x
  3. Step 3: Cross multiply
    992,499,099.40x = 1,489,067,513.70 × 665,344,019.80
  4. Step 4: Simplify right side
    992,499,099.40x = 990,742,165,318,749,568
  5. Step 5: Solve for x
    x = 990,742,165,318,749,568/992,499,099.40
  6. Step 6: Final answer
    x = 998,229,787.73

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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.