Home / 815,041,966.20-1,222,562,949.30-726,610,183.80

Finding the Fourth Proportional to 815,041,966.20, 1,222,562,949.30 and 726,610,183.80

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Solution

The fourth proportional to 815,041,966.20, 1,222,562,949.30 and 726,610,183.80 is: 1,089,915,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,041,966.20 : 1,222,562,949.30 = 726,610,183.80 : x
  2. Step 2: Convert to fraction form
    815,041,966.20/1,222,562,949.30 = 726,610,183.80/x
  3. Step 3: Cross multiply
    815,041,966.20x = 1,222,562,949.30 × 726,610,183.80
  4. Step 4: Simplify right side
    815,041,966.20x = 888,326,689,297,943,040
  5. Step 5: Solve for x
    x = 888,326,689,297,943,040/815,041,966.20
  6. Step 6: Final answer
    x = 1,089,915,275.70

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1.5x scale

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.