Home / 1,520,512,081.05-2,280,768,121.58-485,477,589.45

Finding the Fourth Proportional to 1,520,512,081.05, 2,280,768,121.58 and 485,477,589.45

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Solution

The fourth proportional to 1,520,512,081.05, 2,280,768,121.58 and 485,477,589.45 is: 728,216,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,512,081.05 : 2,280,768,121.58 = 485,477,589.45 : x
  2. Step 2: Convert to fraction form
    1,520,512,081.05/2,280,768,121.58 = 485,477,589.45/x
  3. Step 3: Cross multiply
    1,520,512,081.05x = 2,280,768,121.58 × 485,477,589.45
  4. Step 4: Simplify right side
    1,520,512,081.05x = 1,107,261,809,756,635,392
  5. Step 5: Solve for x
    x = 1,107,261,809,756,635,392/1,520,512,081.05
  6. Step 6: Final answer
    x = 728,216,384.18

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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.