Home / 1,489,324,270.32-2,055,281,771.64-820,284,483.12

Finding the Fourth Proportional to 1,489,324,270.32, 2,055,281,771.64 and 820,284,483.12

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Solution

The fourth proportional to 1,489,324,270.32, 2,055,281,771.64 and 820,284,483.12 is: 1,132,000,451.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,324,270.32 : 2,055,281,771.64 = 820,284,483.12 : x
  2. Step 2: Convert to fraction form
    1,489,324,270.32/2,055,281,771.64 = 820,284,483.12/x
  3. Step 3: Cross multiply
    1,489,324,270.32x = 2,055,281,771.64 × 820,284,483.12
  4. Step 4: Simplify right side
    1,489,324,270.32x = 1,685,915,745,715,675,392
  5. Step 5: Solve for x
    x = 1,685,915,745,715,675,392/1,489,324,270.32
  6. Step 6: Final answer
    x = 1,132,000,451.02

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.