Home / 1,327,105,414.40-1,990,658,121.60-647,628,166.40

Finding the Fourth Proportional to 1,327,105,414.40, 1,990,658,121.60 and 647,628,166.40

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Solution

The fourth proportional to 1,327,105,414.40, 1,990,658,121.60 and 647,628,166.40 is: 971,442,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,105,414.40 : 1,990,658,121.60 = 647,628,166.40 : x
  2. Step 2: Convert to fraction form
    1,327,105,414.40/1,990,658,121.60 = 647,628,166.40/x
  3. Step 3: Cross multiply
    1,327,105,414.40x = 1,990,658,121.60 × 647,628,166.40
  4. Step 4: Simplify right side
    1,327,105,414.40x = 1,289,206,269,221,076,224
  5. Step 5: Solve for x
    x = 1,289,206,269,221,076,224/1,327,105,414.40
  6. Step 6: Final answer
    x = 971,442,249.60

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Double scale
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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.