Home / 10,680,821.80-16,021,232.70-7,825,474.60

Finding the Fourth Proportional to 10,680,821.80, 16,021,232.70 and 7,825,474.60

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Solution

The fourth proportional to 10,680,821.80, 16,021,232.70 and 7,825,474.60 is: 11,738,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,680,821.80 : 16,021,232.70 = 7,825,474.60 : x
  2. Step 2: Convert to fraction form
    10,680,821.80/16,021,232.70 = 7,825,474.60/x
  3. Step 3: Cross multiply
    10,680,821.80x = 16,021,232.70 × 7,825,474.60
  4. Step 4: Simplify right side
    10,680,821.80x = 125,373,749,554,539.41
  5. Step 5: Solve for x
    x = 125,373,749,554,539.41/10,680,821.80
  6. Step 6: Final answer
    x = 11,738,211.90

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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.