Home / 20,979,139.58-31,472,981.20-8,848,648.16

Finding the Fourth Proportional to 20,979,139.58, 31,472,981.20 and 8,848,648.16

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Solution

The fourth proportional to 20,979,139.58, 31,472,981.20 and 8,848,648.16 is: 13,274,774.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,979,139.58 : 31,472,981.20 = 8,848,648.16 : x
  2. Step 2: Convert to fraction form
    20,979,139.58/31,472,981.20 = 8,848,648.16/x
  3. Step 3: Cross multiply
    20,979,139.58x = 31,472,981.20 × 8,848,648.16
  4. Step 4: Simplify right side
    20,979,139.58x = 278,493,337,005,608.06
  5. Step 5: Solve for x
    x = 278,493,337,005,608.06/20,979,139.58
  6. Step 6: Final answer
    x = 13,274,774.02

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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.