Home / 992,499,101.40-1,489,067,516.70-665,344,021.80

Finding the Fourth Proportional to 992,499,101.40, 1,489,067,516.70 and 665,344,021.80

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Solution

The fourth proportional to 992,499,101.40, 1,489,067,516.70 and 665,344,021.80 is: 998,229,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,499,101.40 : 1,489,067,516.70 = 665,344,021.80 : x
  2. Step 2: Convert to fraction form
    992,499,101.40/1,489,067,516.70 = 665,344,021.80/x
  3. Step 3: Cross multiply
    992,499,101.40x = 1,489,067,516.70 × 665,344,021.80
  4. Step 4: Simplify right side
    992,499,101.40x = 990,742,170,292,916,608
  5. Step 5: Solve for x
    x = 990,742,170,292,916,608/992,499,101.40
  6. Step 6: Final answer
    x = 998,229,790.73

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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.