Home / 13,291,637.64-18,345,872.48-8,656,971.54

Finding the Fourth Proportional to 13,291,637.64, 18,345,872.48 and 8,656,971.54

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Solution

The fourth proportional to 13,291,637.64, 18,345,872.48 and 8,656,971.54 is: 11,948,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,637.64 : 18,345,872.48 = 8,656,971.54 : x
  2. Step 2: Convert to fraction form
    13,291,637.64/18,345,872.48 = 8,656,971.54/x
  3. Step 3: Cross multiply
    13,291,637.64x = 18,345,872.48 × 8,656,971.54
  4. Step 4: Simplify right side
    13,291,637.64x = 158,819,695,935,829.22
  5. Step 5: Solve for x
    x = 158,819,695,935,829.22/13,291,637.64
  6. Step 6: Final answer
    x = 11,948,843.34

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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.