Home / 3,189,962,425.92-4,401,964,481.28-1,780,155,741.12

Finding the Fourth Proportional to 3,189,962,425.92, 4,401,964,481.28 and 1,780,155,741.12

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Solution

The fourth proportional to 3,189,962,425.92, 4,401,964,481.28 and 1,780,155,741.12 is: 2,456,512,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189,962,425.92 : 4,401,964,481.28 = 1,780,155,741.12 : x
  2. Step 2: Convert to fraction form
    3,189,962,425.92/4,401,964,481.28 = 1,780,155,741.12/x
  3. Step 3: Cross multiply
    3,189,962,425.92x = 4,401,964,481.28 × 1,780,155,741.12
  4. Step 4: Simplify right side
    3,189,962,425.92x = 7,836,182,343,556,914,176
  5. Step 5: Solve for x
    x = 7,836,182,343,556,914,176/3,189,962,425.92
  6. Step 6: Final answer
    x = 2,456,512,427.82

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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.