Home / 13,291,651.26-18,345,891.29-8,656,985.16

Finding the Fourth Proportional to 13,291,651.26, 18,345,891.29 and 8,656,985.16

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Solution

The fourth proportional to 13,291,651.26, 18,345,891.29 and 8,656,985.16 is: 11,948,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,651.26 : 18,345,891.29 = 8,656,985.16 : x
  2. Step 2: Convert to fraction form
    13,291,651.26/18,345,891.29 = 8,656,985.16/x
  3. Step 3: Cross multiply
    13,291,651.26x = 18,345,891.29 × 8,656,985.16
  4. Step 4: Simplify right side
    13,291,651.26x = 158,820,108,601,218.34
  5. Step 5: Solve for x
    x = 158,820,108,601,218.34/13,291,651.26
  6. Step 6: Final answer
    x = 11,948,862.15

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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.