Home / 28,067,080.80-42,100,621.20-19,457,736.60

Finding the Fourth Proportional to 28,067,080.80, 42,100,621.20 and 19,457,736.60

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Solution

The fourth proportional to 28,067,080.80, 42,100,621.20 and 19,457,736.60 is: 29,186,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067,080.80 : 42,100,621.20 = 19,457,736.60 : x
  2. Step 2: Convert to fraction form
    28,067,080.80/42,100,621.20 = 19,457,736.60/x
  3. Step 3: Cross multiply
    28,067,080.80x = 42,100,621.20 × 19,457,736.60
  4. Step 4: Simplify right side
    28,067,080.80x = 819,182,798,005,976
  5. Step 5: Solve for x
    x = 819,182,798,005,976/28,067,080.80
  6. Step 6: Final answer
    x = 29,186,604.90

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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.