Home / 13,815,999.80-20,723,999.70-7,844,031.80

Finding the Fourth Proportional to 13,815,999.80, 20,723,999.70 and 7,844,031.80

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Solution

The fourth proportional to 13,815,999.80, 20,723,999.70 and 7,844,031.80 is: 11,766,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815,999.80 : 20,723,999.70 = 7,844,031.80 : x
  2. Step 2: Convert to fraction form
    13,815,999.80/20,723,999.70 = 7,844,031.80/x
  3. Step 3: Cross multiply
    13,815,999.80x = 20,723,999.70 × 7,844,031.80
  4. Step 4: Simplify right side
    13,815,999.80x = 162,559,712,669,990.44
  5. Step 5: Solve for x
    x = 162,559,712,669,990.44/13,815,999.80
  6. Step 6: Final answer
    x = 11,766,047.70

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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.