Home / 2,665,638,088.20-3,998,457,132.30-1,288,143,016.20

Finding the Fourth Proportional to 2,665,638,088.20, 3,998,457,132.30 and 1,288,143,016.20

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Solution

The fourth proportional to 2,665,638,088.20, 3,998,457,132.30 and 1,288,143,016.20 is: 1,932,214,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665,638,088.20 : 3,998,457,132.30 = 1,288,143,016.20 : x
  2. Step 2: Convert to fraction form
    2,665,638,088.20/3,998,457,132.30 = 1,288,143,016.20/x
  3. Step 3: Cross multiply
    2,665,638,088.20x = 3,998,457,132.30 × 1,288,143,016.20
  4. Step 4: Simplify right side
    2,665,638,088.20x = 5,150,584,630,547,324,928
  5. Step 5: Solve for x
    x = 5,150,584,630,547,324,928/2,665,638,088.20
  6. Step 6: Final answer
    x = 1,932,214,524.30

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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.