Home / 211,825,108.89-317,740,832.81-80,674,627.44

Finding the Fourth Proportional to 211,825,108.89, 317,740,832.81 and 80,674,627.44

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Solution

The fourth proportional to 211,825,108.89, 317,740,832.81 and 80,674,627.44 is: 121,013,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,825,108.89 : 317,740,832.81 = 80,674,627.44 : x
  2. Step 2: Convert to fraction form
    211,825,108.89/317,740,832.81 = 80,674,627.44/x
  3. Step 3: Cross multiply
    211,825,108.89x = 317,740,832.81 × 80,674,627.44
  4. Step 4: Simplify right side
    211,825,108.89x = 25,633,623,309,422,076
  5. Step 5: Solve for x
    x = 25,633,623,309,422,076/211,825,108.89
  6. Step 6: Final answer
    x = 121,013,148.27

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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.