Home / 13,146,410.85-18,142,985.75-7,265,918.66

Finding the Fourth Proportional to 13,146,410.85, 18,142,985.75 and 7,265,918.66

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Solution

The fourth proportional to 13,146,410.85, 18,142,985.75 and 7,265,918.66 is: 10,027,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,410.85 : 18,142,985.75 = 7,265,918.66 : x
  2. Step 2: Convert to fraction form
    13,146,410.85/18,142,985.75 = 7,265,918.66/x
  3. Step 3: Cross multiply
    13,146,410.85x = 18,142,985.75 × 7,265,918.66
  4. Step 4: Simplify right side
    13,146,410.85x = 131,825,458,772,561.36
  5. Step 5: Solve for x
    x = 131,825,458,772,561.36/13,146,410.85
  6. Step 6: Final answer
    x = 10,027,486.61

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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.