Home / 1,218,951,473.07-1,682,096,732.55-690,319,242.03

Finding the Fourth Proportional to 1,218,951,473.07, 1,682,096,732.55 and 690,319,242.03

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Solution

The fourth proportional to 1,218,951,473.07, 1,682,096,732.55 and 690,319,242.03 is: 952,608,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,951,473.07 : 1,682,096,732.55 = 690,319,242.03 : x
  2. Step 2: Convert to fraction form
    1,218,951,473.07/1,682,096,732.55 = 690,319,242.03/x
  3. Step 3: Cross multiply
    1,218,951,473.07x = 1,682,096,732.55 × 690,319,242.03
  4. Step 4: Simplify right side
    1,218,951,473.07x = 1,161,183,741,435,055,616
  5. Step 5: Solve for x
    x = 1,161,183,741,435,055,616/1,218,951,473.07
  6. Step 6: Final answer
    x = 952,608,669.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.