Home / 20,855,080.96-31,241,891.84-9,909,698.56

Finding the Fourth Proportional to 20,855,080.96, 31,241,891.84 and 9,909,698.56

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Solution

The fourth proportional to 20,855,080.96, 31,241,891.84 and 9,909,698.56 is: 14,845,194.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855,080.96 : 31,241,891.84 = 9,909,698.56 : x
  2. Step 2: Convert to fraction form
    20,855,080.96/31,241,891.84 = 9,909,698.56/x
  3. Step 3: Cross multiply
    20,855,080.96x = 31,241,891.84 × 9,909,698.56
  4. Step 4: Simplify right side
    20,855,080.96x = 309,597,730,578,523.75
  5. Step 5: Solve for x
    x = 309,597,730,578,523.75/20,855,080.96
  6. Step 6: Final answer
    x = 14,845,194.38

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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.