Home / 992,737,719.40-1,489,106,579.10-265,726,431.40

Finding the Fourth Proportional to 992,737,719.40, 1,489,106,579.10 and 265,726,431.40

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Solution

The fourth proportional to 992,737,719.40, 1,489,106,579.10 and 265,726,431.40 is: 398,589,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,737,719.40 : 1,489,106,579.10 = 265,726,431.40 : x
  2. Step 2: Convert to fraction form
    992,737,719.40/1,489,106,579.10 = 265,726,431.40/x
  3. Step 3: Cross multiply
    992,737,719.40x = 1,489,106,579.10 × 265,726,431.40
  4. Step 4: Simplify right side
    992,737,719.40x = 395,694,977,238,504,832
  5. Step 5: Solve for x
    x = 395,694,977,238,504,832/992,737,719.40
  6. Step 6: Final answer
    x = 398,589,647.10

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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.