Home / 20,855,081.96-31,241,893.34-9,909,699.56

Finding the Fourth Proportional to 20,855,081.96, 31,241,893.34 and 9,909,699.56

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Solution

The fourth proportional to 20,855,081.96, 31,241,893.34 and 9,909,699.56 is: 14,845,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855,081.96 : 31,241,893.34 = 9,909,699.56 : x
  2. Step 2: Convert to fraction form
    20,855,081.96/31,241,893.34 = 9,909,699.56/x
  3. Step 3: Cross multiply
    20,855,081.96x = 31,241,893.34 × 9,909,699.56
  4. Step 4: Simplify right side
    20,855,081.96x = 309,597,776,684,964.94
  5. Step 5: Solve for x
    x = 309,597,776,684,964.94/20,855,081.96
  6. Step 6: Final answer
    x = 14,845,195.87

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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.