Home / 19,422,040.80-29,166,238.80-12,720,165.60

Finding the Fourth Proportional to 19,422,040.80, 29,166,238.80 and 12,720,165.60

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Solution

The fourth proportional to 19,422,040.80, 29,166,238.80 and 12,720,165.60 is: 19,101,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422,040.80 : 29,166,238.80 = 12,720,165.60 : x
  2. Step 2: Convert to fraction form
    19,422,040.80/29,166,238.80 = 12,720,165.60/x
  3. Step 3: Cross multiply
    19,422,040.80x = 29,166,238.80 × 12,720,165.60
  4. Step 4: Simplify right side
    19,422,040.80x = 370,999,387,465,145.25
  5. Step 5: Solve for x
    x = 370,999,387,465,145.25/19,422,040.80
  6. Step 6: Final answer
    x = 19,101,977.56

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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.