Home / 28,127,273.70-42,190,910.55-8,959,968.30

Finding the Fourth Proportional to 28,127,273.70, 42,190,910.55 and 8,959,968.30

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Solution

The fourth proportional to 28,127,273.70, 42,190,910.55 and 8,959,968.30 is: 13,439,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127,273.70 : 42,190,910.55 = 8,959,968.30 : x
  2. Step 2: Convert to fraction form
    28,127,273.70/42,190,910.55 = 8,959,968.30/x
  3. Step 3: Cross multiply
    28,127,273.70x = 42,190,910.55 × 8,959,968.30
  4. Step 4: Simplify right side
    28,127,273.70x = 378,029,221,076,135.56
  5. Step 5: Solve for x
    x = 378,029,221,076,135.56/28,127,273.70
  6. Step 6: Final answer
    x = 13,439,952.45

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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.