Home / 8,140,830-12,212,080.92-2,157,198

Finding the Fourth Proportional to 8,140,830, 12,212,080.92 and 2,157,198

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Solution

The fourth proportional to 8,140,830, 12,212,080.92 and 2,157,198 is: 3,236,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140,830 : 12,212,080.92 = 2,157,198 : x
  2. Step 2: Convert to fraction form
    8,140,830/12,212,080.92 = 2,157,198/x
  3. Step 3: Cross multiply
    8,140,830x = 12,212,080.92 × 2,157,198
  4. Step 4: Simplify right side
    8,140,830x = 26,343,876,536,462.16
  5. Step 5: Solve for x
    x = 26,343,876,536,462.16/8,140,830
  6. Step 6: Final answer
    x = 3,236,018.51

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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.