Home / 9,431,147.78-13,014,984.06-5,138,795.78

Finding the Fourth Proportional to 9,431,147.78, 13,014,984.06 and 5,138,795.78

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Solution

The fourth proportional to 9,431,147.78, 13,014,984.06 and 5,138,795.78 is: 7,091,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431,147.78 : 13,014,984.06 = 5,138,795.78 : x
  2. Step 2: Convert to fraction form
    9,431,147.78/13,014,984.06 = 5,138,795.78/x
  3. Step 3: Cross multiply
    9,431,147.78x = 13,014,984.06 × 5,138,795.78
  4. Step 4: Simplify right side
    9,431,147.78x = 66,881,345,164,295.27
  5. Step 5: Solve for x
    x = 66,881,345,164,295.27/9,431,147.78
  6. Step 6: Final answer
    x = 7,091,538.24

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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.