Home / 20,809,829.70-31,214,744.55-19,959,524.10

Finding the Fourth Proportional to 20,809,829.70, 31,214,744.55 and 19,959,524.10

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Solution

The fourth proportional to 20,809,829.70, 31,214,744.55 and 19,959,524.10 is: 29,939,286.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,829.70 : 31,214,744.55 = 19,959,524.10 : x
  2. Step 2: Convert to fraction form
    20,809,829.70/31,214,744.55 = 19,959,524.10/x
  3. Step 3: Cross multiply
    20,809,829.70x = 31,214,744.55 × 19,959,524.10
  4. Step 4: Simplify right side
    20,809,829.70x = 623,031,446,121,068.75
  5. Step 5: Solve for x
    x = 623,031,446,121,068.75/20,809,829.70
  6. Step 6: Final answer
    x = 29,939,286.15

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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.