Home / 2,161,396,421.92-2,982,729,613.64-1,171,321,838.96

Finding the Fourth Proportional to 2,161,396,421.92, 2,982,729,613.64 and 1,171,321,838.96

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Solution

The fourth proportional to 2,161,396,421.92, 2,982,729,613.64 and 1,171,321,838.96 is: 1,616,425,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,396,421.92 : 2,982,729,613.64 = 1,171,321,838.96 : x
  2. Step 2: Convert to fraction form
    2,161,396,421.92/2,982,729,613.64 = 1,171,321,838.96/x
  3. Step 3: Cross multiply
    2,161,396,421.92x = 2,982,729,613.64 × 1,171,321,838.96
  4. Step 4: Simplify right side
    2,161,396,421.92x = 3,493,736,336,169,254,912
  5. Step 5: Solve for x
    x = 3,493,736,336,169,254,912/2,161,396,421.92
  6. Step 6: Final answer
    x = 1,616,425,520.44

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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.