Home / 19,819,131.38-29,708,610.70-13,430,029.58

Finding the Fourth Proportional to 19,819,131.38, 29,708,610.70 and 13,430,029.58

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Solution

The fourth proportional to 19,819,131.38, 29,708,610.70 and 13,430,029.58 is: 20,131,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819,131.38 : 29,708,610.70 = 13,430,029.58 : x
  2. Step 2: Convert to fraction form
    19,819,131.38/29,708,610.70 = 13,430,029.58/x
  3. Step 3: Cross multiply
    19,819,131.38x = 29,708,610.70 × 13,430,029.58
  4. Step 4: Simplify right side
    19,819,131.38x = 398,987,520,481,704.50
  5. Step 5: Solve for x
    x = 398,987,520,481,704.50/19,819,131.38
  6. Step 6: Final answer
    x = 20,131,433.25

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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.