Home / 7,857,989.11-11,786,986.89-3,534,989.88

Finding the Fourth Proportional to 7,857,989.11, 11,786,986.89 and 3,534,989.88

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Solution

The fourth proportional to 7,857,989.11, 11,786,986.89 and 3,534,989.88 is: 5,302,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857,989.11 : 11,786,986.89 = 3,534,989.88 : x
  2. Step 2: Convert to fraction form
    7,857,989.11/11,786,986.89 = 3,534,989.88/x
  3. Step 3: Cross multiply
    7,857,989.11x = 11,786,986.89 × 3,534,989.88
  4. Step 4: Simplify right side
    7,857,989.11x = 41,666,879,416,043.88
  5. Step 5: Solve for x
    x = 41,666,879,416,043.88/7,857,989.11
  6. Step 6: Final answer
    x = 5,302,486.28

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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.