Home / 20,769,244.63-31,024,351.43-15,388,404.50

Finding the Fourth Proportional to 20,769,244.63, 31,024,351.43 and 15,388,404.50

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Solution

The fourth proportional to 20,769,244.63, 31,024,351.43 and 15,388,404.50 is: 22,986,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,244.63 : 31,024,351.43 = 15,388,404.50 : x
  2. Step 2: Convert to fraction form
    20,769,244.63/31,024,351.43 = 15,388,404.50/x
  3. Step 3: Cross multiply
    20,769,244.63x = 31,024,351.43 × 15,388,404.50
  4. Step 4: Simplify right side
    20,769,244.63x = 477,415,269,299,894
  5. Step 5: Solve for x
    x = 477,415,269,299,894/20,769,244.63
  6. Step 6: Final answer
    x = 22,986,645.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.