Home / 12,397,786.89-17,108,509.54-6,815,992.76

Finding the Fourth Proportional to 12,397,786.89, 17,108,509.54 and 6,815,992.76

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Solution

The fourth proportional to 12,397,786.89, 17,108,509.54 and 6,815,992.76 is: 9,405,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397,786.89 : 17,108,509.54 = 6,815,992.76 : x
  2. Step 2: Convert to fraction form
    12,397,786.89/17,108,509.54 = 6,815,992.76/x
  3. Step 3: Cross multiply
    12,397,786.89x = 17,108,509.54 × 6,815,992.76
  4. Step 4: Simplify right side
    12,397,786.89x = 116,611,477,206,690.02
  5. Step 5: Solve for x
    x = 116,611,477,206,690.02/12,397,786.89
  6. Step 6: Final answer
    x = 9,405,830.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.