Home / 2,159,397,992.70-3,239,096,989.05-1,989,336,872.70

Finding the Fourth Proportional to 2,159,397,992.70, 3,239,096,989.05 and 1,989,336,872.70

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Solution

The fourth proportional to 2,159,397,992.70, 3,239,096,989.05 and 1,989,336,872.70 is: 2,984,005,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,397,992.70 : 3,239,096,989.05 = 1,989,336,872.70 : x
  2. Step 2: Convert to fraction form
    2,159,397,992.70/3,239,096,989.05 = 1,989,336,872.70/x
  3. Step 3: Cross multiply
    2,159,397,992.70x = 3,239,096,989.05 × 1,989,336,872.70
  4. Step 4: Simplify right side
    2,159,397,992.70x = 6,443,655,074,568,713,216
  5. Step 5: Solve for x
    x = 6,443,655,074,568,713,216/2,159,397,992.70
  6. Step 6: Final answer
    x = 2,984,005,309.05

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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.