Home / 10,421,884.96-15,609,729.84-8,007,961.12

Finding the Fourth Proportional to 10,421,884.96, 15,609,729.84 and 8,007,961.12

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Solution

The fourth proportional to 10,421,884.96, 15,609,729.84 and 8,007,961.12 is: 11,994,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421,884.96 : 15,609,729.84 = 8,007,961.12 : x
  2. Step 2: Convert to fraction form
    10,421,884.96/15,609,729.84 = 8,007,961.12/x
  3. Step 3: Cross multiply
    10,421,884.96x = 15,609,729.84 × 8,007,961.12
  4. Step 4: Simplify right side
    10,421,884.96x = 125,002,109,652,423.83
  5. Step 5: Solve for x
    x = 125,002,109,652,423.83/10,421,884.96
  6. Step 6: Final answer
    x = 11,994,193.96

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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.