Home / 10,078,740.81-13,909,843.11-5,728,481.04

Finding the Fourth Proportional to 10,078,740.81, 13,909,843.11 and 5,728,481.04

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Solution

The fourth proportional to 10,078,740.81, 13,909,843.11 and 5,728,481.04 is: 7,905,974.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078,740.81 : 13,909,843.11 = 5,728,481.04 : x
  2. Step 2: Convert to fraction form
    10,078,740.81/13,909,843.11 = 5,728,481.04/x
  3. Step 3: Cross multiply
    10,078,740.81x = 13,909,843.11 × 5,728,481.04
  4. Step 4: Simplify right side
    10,078,740.81x = 79,682,272,525,009.62
  5. Step 5: Solve for x
    x = 79,682,272,525,009.62/10,078,740.81
  6. Step 6: Final answer
    x = 7,905,974.97

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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.