Home / 28,305,434.60-42,414,606.30-21,083,085.80

Finding the Fourth Proportional to 28,305,434.60, 42,414,606.30 and 21,083,085.80

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Solution

The fourth proportional to 28,305,434.60, 42,414,606.30 and 21,083,085.80 is: 31,592,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305,434.60 : 42,414,606.30 = 21,083,085.80 : x
  2. Step 2: Convert to fraction form
    28,305,434.60/42,414,606.30 = 21,083,085.80/x
  3. Step 3: Cross multiply
    28,305,434.60x = 42,414,606.30 × 21,083,085.80
  4. Step 4: Simplify right side
    28,305,434.60x = 894,230,783,796,120.50
  5. Step 5: Solve for x
    x = 894,230,783,796,120.50/28,305,434.60
  6. Step 6: Final answer
    x = 31,592,194.09

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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.