Home / 13,586,686.97-18,749,709.54-7,391,778.11

Finding the Fourth Proportional to 13,586,686.97, 18,749,709.54 and 7,391,778.11

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Solution

The fourth proportional to 13,586,686.97, 18,749,709.54 and 7,391,778.11 is: 10,200,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586,686.97 : 18,749,709.54 = 7,391,778.11 : x
  2. Step 2: Convert to fraction form
    13,586,686.97/18,749,709.54 = 7,391,778.11/x
  3. Step 3: Cross multiply
    13,586,686.97x = 18,749,709.54 × 7,391,778.11
  4. Step 4: Simplify right side
    13,586,686.97x = 138,593,692,452,881.62
  5. Step 5: Solve for x
    x = 138,593,692,452,881.62/13,586,686.97
  6. Step 6: Final answer
    x = 10,200,698.14

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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.