Home / 1,520,512,085.55-2,280,768,128.33-485,477,593.95

Finding the Fourth Proportional to 1,520,512,085.55, 2,280,768,128.33 and 485,477,593.95

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Solution

The fourth proportional to 1,520,512,085.55, 2,280,768,128.33 and 485,477,593.95 is: 728,216,390.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,512,085.55 : 2,280,768,128.33 = 485,477,593.95 : x
  2. Step 2: Convert to fraction form
    1,520,512,085.55/2,280,768,128.33 = 485,477,593.95/x
  3. Step 3: Cross multiply
    1,520,512,085.55x = 2,280,768,128.33 × 485,477,593.95
  4. Step 4: Simplify right side
    1,520,512,085.55x = 1,107,261,823,297,065,728
  5. Step 5: Solve for x
    x = 1,107,261,823,297,065,728/1,520,512,085.55
  6. Step 6: Final answer
    x = 728,216,390.93

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Double scale
Find fourth proportional to 1,520,512,086.55, 2,280,768,129.83 and 485,477,594.95
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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.