Home / 664,303,086.40-996,454,629.60-660,476,711.20

Finding the Fourth Proportional to 664,303,086.40, 996,454,629.60 and 660,476,711.20

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Solution

The fourth proportional to 664,303,086.40, 996,454,629.60 and 660,476,711.20 is: 990,715,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,303,086.40 : 996,454,629.60 = 660,476,711.20 : x
  2. Step 2: Convert to fraction form
    664,303,086.40/996,454,629.60 = 660,476,711.20/x
  3. Step 3: Cross multiply
    664,303,086.40x = 996,454,629.60 × 660,476,711.20
  4. Step 4: Simplify right side
    664,303,086.40x = 658,135,076,618,222,208
  5. Step 5: Solve for x
    x = 658,135,076,618,222,208/664,303,086.40
  6. Step 6: Final answer
    x = 990,715,066.80

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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.