Home / 18,654,021.78-25,742,603.40-10,815,057.48

Finding the Fourth Proportional to 18,654,021.78, 25,742,603.40 and 10,815,057.48

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Solution

The fourth proportional to 18,654,021.78, 25,742,603.40 and 10,815,057.48 is: 14,924,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654,021.78 : 25,742,603.40 = 10,815,057.48 : x
  2. Step 2: Convert to fraction form
    18,654,021.78/25,742,603.40 = 10,815,057.48/x
  3. Step 3: Cross multiply
    18,654,021.78x = 25,742,603.40 × 10,815,057.48
  4. Step 4: Simplify right side
    18,654,021.78x = 278,407,735,455,843.44
  5. Step 5: Solve for x
    x = 278,407,735,455,843.44/18,654,021.78
  6. Step 6: Final answer
    x = 14,924,810.25

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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.