Home / 11,912,311.20-17,890,118.10-7,129,342.20

Finding the Fourth Proportional to 11,912,311.20, 17,890,118.10 and 7,129,342.20

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Solution

The fourth proportional to 11,912,311.20, 17,890,118.10 and 7,129,342.20 is: 10,706,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912,311.20 : 17,890,118.10 = 7,129,342.20 : x
  2. Step 2: Convert to fraction form
    11,912,311.20/17,890,118.10 = 7,129,342.20/x
  3. Step 3: Cross multiply
    11,912,311.20x = 17,890,118.10 × 7,129,342.20
  4. Step 4: Simplify right side
    11,912,311.20x = 127,544,773,933,313.83
  5. Step 5: Solve for x
    x = 127,544,773,933,313.83/11,912,311.20
  6. Step 6: Final answer
    x = 10,706,971.28

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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.