Home / 13,291,652.26-18,345,892.67-8,656,986.16

Finding the Fourth Proportional to 13,291,652.26, 18,345,892.67 and 8,656,986.16

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Solution

The fourth proportional to 13,291,652.26, 18,345,892.67 and 8,656,986.16 is: 11,948,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,652.26 : 18,345,892.67 = 8,656,986.16 : x
  2. Step 2: Convert to fraction form
    13,291,652.26/18,345,892.67 = 8,656,986.16/x
  3. Step 3: Cross multiply
    13,291,652.26x = 18,345,892.67 × 8,656,986.16
  4. Step 4: Simplify right side
    13,291,652.26x = 158,820,138,937,035.47
  5. Step 5: Solve for x
    x = 158,820,138,937,035.47/13,291,652.26
  6. Step 6: Final answer
    x = 11,948,863.53

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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.