Home / 72,070,987.20-108,112,380.84-20,952,943.44

Finding the Fourth Proportional to 72,070,987.20, 108,112,380.84 and 20,952,943.44

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Solution

The fourth proportional to 72,070,987.20, 108,112,380.84 and 20,952,943.44 is: 31,431,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,987.20 : 108,112,380.84 = 20,952,943.44 : x
  2. Step 2: Convert to fraction form
    72,070,987.20/108,112,380.84 = 20,952,943.44/x
  3. Step 3: Cross multiply
    72,070,987.20x = 108,112,380.84 × 20,952,943.44
  4. Step 4: Simplify right side
    72,070,987.20x = 2,265,272,600,904,260
  5. Step 5: Solve for x
    x = 2,265,272,600,904,260/72,070,987.20
  6. Step 6: Final answer
    x = 31,431,130.46

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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.