Home / 12,975,965.96-17,906,110.44-7,174,399.28

Finding the Fourth Proportional to 12,975,965.96, 17,906,110.44 and 7,174,399.28

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Solution

The fourth proportional to 12,975,965.96, 17,906,110.44 and 7,174,399.28 is: 9,900,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975,965.96 : 17,906,110.44 = 7,174,399.28 : x
  2. Step 2: Convert to fraction form
    12,975,965.96/17,906,110.44 = 7,174,399.28/x
  3. Step 3: Cross multiply
    12,975,965.96x = 17,906,110.44 × 7,174,399.28
  4. Step 4: Simplify right side
    12,975,965.96x = 128,465,585,848,336.50
  5. Step 5: Solve for x
    x = 128,465,585,848,336.50/12,975,965.96
  6. Step 6: Final answer
    x = 9,900,271.49

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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.