Home / 992,499,107.90-1,489,067,526.45-665,344,028.30

Finding the Fourth Proportional to 992,499,107.90, 1,489,067,526.45 and 665,344,028.30

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Solution

The fourth proportional to 992,499,107.90, 1,489,067,526.45 and 665,344,028.30 is: 998,229,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,499,107.90 : 1,489,067,526.45 = 665,344,028.30 : x
  2. Step 2: Convert to fraction form
    992,499,107.90/1,489,067,526.45 = 665,344,028.30/x
  3. Step 3: Cross multiply
    992,499,107.90x = 1,489,067,526.45 × 665,344,028.30
  4. Step 4: Simplify right side
    992,499,107.90x = 990,742,186,458,959,744
  5. Step 5: Solve for x
    x = 990,742,186,458,959,744/992,499,107.90
  6. Step 6: Final answer
    x = 998,229,800.48

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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.