Home / 20,828,537.86-31,244,860.14-7,179,887.38

Finding the Fourth Proportional to 20,828,537.86, 31,244,860.14 and 7,179,887.38

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Solution

The fourth proportional to 20,828,537.86, 31,244,860.14 and 7,179,887.38 is: 10,770,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,537.86 : 31,244,860.14 = 7,179,887.38 : x
  2. Step 2: Convert to fraction form
    20,828,537.86/31,244,860.14 = 7,179,887.38/x
  3. Step 3: Cross multiply
    20,828,537.86x = 31,244,860.14 × 7,179,887.38
  4. Step 4: Simplify right side
    20,828,537.86x = 224,334,577,009,051.03
  5. Step 5: Solve for x
    x = 224,334,577,009,051.03/20,828,537.86
  6. Step 6: Final answer
    x = 10,770,538.89

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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.