Home / 5,197,710.91-7,790,443.62-2,121,780.76

Finding the Fourth Proportional to 5,197,710.91, 7,790,443.62 and 2,121,780.76

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Solution

The fourth proportional to 5,197,710.91, 7,790,443.62 and 2,121,780.76 is: 3,180,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197,710.91 : 7,790,443.62 = 2,121,780.76 : x
  2. Step 2: Convert to fraction form
    5,197,710.91/7,790,443.62 = 2,121,780.76/x
  3. Step 3: Cross multiply
    5,197,710.91x = 7,790,443.62 × 2,121,780.76
  4. Step 4: Simplify right side
    5,197,710.91x = 16,529,613,350,985.55
  5. Step 5: Solve for x
    x = 16,529,613,350,985.55/5,197,710.91
  6. Step 6: Final answer
    x = 3,180,171.74

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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.