Home / 28,728,985.20-43,093,477.80-17,979,442.80

Finding the Fourth Proportional to 28,728,985.20, 43,093,477.80 and 17,979,442.80

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Solution

The fourth proportional to 28,728,985.20, 43,093,477.80 and 17,979,442.80 is: 26,969,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,985.20 : 43,093,477.80 = 17,979,442.80 : x
  2. Step 2: Convert to fraction form
    28,728,985.20/43,093,477.80 = 17,979,442.80/x
  3. Step 3: Cross multiply
    28,728,985.20x = 43,093,477.80 × 17,979,442.80
  4. Step 4: Simplify right side
    28,728,985.20x = 774,796,719,158,169.88
  5. Step 5: Solve for x
    x = 774,796,719,158,169.88/28,728,985.20
  6. Step 6: Final answer
    x = 26,969,164.20

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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.