Home / 20,367,978.73-28,108,343.35-11,076,092.24

Finding the Fourth Proportional to 20,367,978.73, 28,108,343.35 and 11,076,092.24

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Solution

The fourth proportional to 20,367,978.73, 28,108,343.35 and 11,076,092.24 is: 15,285,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367,978.73 : 28,108,343.35 = 11,076,092.24 : x
  2. Step 2: Convert to fraction form
    20,367,978.73/28,108,343.35 = 11,076,092.24/x
  3. Step 3: Cross multiply
    20,367,978.73x = 28,108,343.35 × 11,076,092.24
  4. Step 4: Simplify right side
    20,367,978.73x = 311,330,603,777,442
  5. Step 5: Solve for x
    x = 311,330,603,777,442/20,367,978.73
  6. Step 6: Final answer
    x = 15,285,296.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.