Home / 13,122,380.21-19,692,355.75-5,446,031.45

Finding the Fourth Proportional to 13,122,380.21, 19,692,355.75 and 5,446,031.45

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Solution

The fourth proportional to 13,122,380.21, 19,692,355.75 and 5,446,031.45 is: 8,172,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,380.21 : 19,692,355.75 = 5,446,031.45 : x
  2. Step 2: Convert to fraction form
    13,122,380.21/19,692,355.75 = 5,446,031.45/x
  3. Step 3: Cross multiply
    13,122,380.21x = 19,692,355.75 × 5,446,031.45
  4. Step 4: Simplify right side
    13,122,380.21x = 107,245,188,627,011.48
  5. Step 5: Solve for x
    x = 107,245,188,627,011.48/13,122,380.21
  6. Step 6: Final answer
    x = 8,172,693.29

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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.