Home / 13,125,979.54-18,113,852.24-7,245,615.25

Finding the Fourth Proportional to 13,125,979.54, 18,113,852.24 and 7,245,615.25

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Solution

The fourth proportional to 13,125,979.54, 18,113,852.24 and 7,245,615.25 is: 9,998,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125,979.54 : 18,113,852.24 = 7,245,615.25 : x
  2. Step 2: Convert to fraction form
    13,125,979.54/18,113,852.24 = 7,245,615.25/x
  3. Step 3: Cross multiply
    13,125,979.54x = 18,113,852.24 × 7,245,615.25
  4. Step 4: Simplify right side
    13,125,979.54x = 131,246,004,026,390.64
  5. Step 5: Solve for x
    x = 131,246,004,026,390.64/13,125,979.54
  6. Step 6: Final answer
    x = 9,998,949.31

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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.