Home / 13,291,652.76-18,345,893.36-8,656,986.66

Finding the Fourth Proportional to 13,291,652.76, 18,345,893.36 and 8,656,986.66

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Solution

The fourth proportional to 13,291,652.76, 18,345,893.36 and 8,656,986.66 is: 11,948,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,652.76 : 18,345,893.36 = 8,656,986.66 : x
  2. Step 2: Convert to fraction form
    13,291,652.76/18,345,893.36 = 8,656,986.66/x
  3. Step 3: Cross multiply
    13,291,652.76x = 18,345,893.36 × 8,656,986.66
  4. Step 4: Simplify right side
    13,291,652.76x = 158,820,154,040,017.66
  5. Step 5: Solve for x
    x = 158,820,154,040,017.66/13,291,652.76
  6. Step 6: Final answer
    x = 11,948,864.22

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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.