Home / 20,125,678.96-30,131,828.16-18,084,945.52

Finding the Fourth Proportional to 20,125,678.96, 30,131,828.16 and 18,084,945.52

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Solution

The fourth proportional to 20,125,678.96, 30,131,828.16 and 18,084,945.52 is: 27,076,476.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125,678.96 : 30,131,828.16 = 18,084,945.52 : x
  2. Step 2: Convert to fraction form
    20,125,678.96/30,131,828.16 = 18,084,945.52/x
  3. Step 3: Cross multiply
    20,125,678.96x = 30,131,828.16 × 18,084,945.52
  4. Step 4: Simplify right side
    20,125,678.96x = 544,932,470,691,601.81
  5. Step 5: Solve for x
    x = 544,932,470,691,601.81/20,125,678.96
  6. Step 6: Final answer
    x = 27,076,476.37

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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.