Home / 989,838,238.26-1,485,119,443.03-931,361,958.23

Finding the Fourth Proportional to 989,838,238.26, 1,485,119,443.03 and 931,361,958.23

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Solution

The fourth proportional to 989,838,238.26, 1,485,119,443.03 and 931,361,958.23 is: 1,397,383,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,838,238.26 : 1,485,119,443.03 = 931,361,958.23 : x
  2. Step 2: Convert to fraction form
    989,838,238.26/1,485,119,443.03 = 931,361,958.23/x
  3. Step 3: Cross multiply
    989,838,238.26x = 1,485,119,443.03 × 931,361,958.23
  4. Step 4: Simplify right side
    989,838,238.26x = 1,383,183,752,667,251,968
  5. Step 5: Solve for x
    x = 1,383,183,752,667,251,968/989,838,238.26
  6. Step 6: Final answer
    x = 1,397,383,632.20

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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.