Home / 13,291,637.76-18,345,872.66-8,656,971.66

Finding the Fourth Proportional to 13,291,637.76, 18,345,872.66 and 8,656,971.66

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Solution

The fourth proportional to 13,291,637.76, 18,345,872.66 and 8,656,971.66 is: 11,948,843.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,637.76 : 18,345,872.66 = 8,656,971.66 : x
  2. Step 2: Convert to fraction form
    13,291,637.76/18,345,872.66 = 8,656,971.66/x
  3. Step 3: Cross multiply
    13,291,637.76x = 18,345,872.66 × 8,656,971.66
  4. Step 4: Simplify right side
    13,291,637.76x = 158,819,699,652,303.97
  5. Step 5: Solve for x
    x = 158,819,699,652,303.97/13,291,637.76
  6. Step 6: Final answer
    x = 11,948,843.51

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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.