Home / 2,189,821.64-3,000,005.51-2,107,948.86

Finding the Fourth Proportional to 2,189,821.64, 3,000,005.51 and 2,107,948.86

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Solution

The fourth proportional to 2,189,821.64, 3,000,005.51 and 2,107,948.86 is: 2,887,841.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,821.64 : 3,000,005.51 = 2,107,948.86 : x
  2. Step 2: Convert to fraction form
    2,189,821.64/3,000,005.51 = 2,107,948.86/x
  3. Step 3: Cross multiply
    2,189,821.64x = 3,000,005.51 × 2,107,948.86
  4. Step 4: Simplify right side
    2,189,821.64x = 6,323,858,184,258.47
  5. Step 5: Solve for x
    x = 6,323,858,184,258.47/2,189,821.64
  6. Step 6: Final answer
    x = 2,887,841.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.