Home / 12,121,989.04-16,728,699.19-6,615,717.29

Finding the Fourth Proportional to 12,121,989.04, 16,728,699.19 and 6,615,717.29

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Solution

The fourth proportional to 12,121,989.04, 16,728,699.19 and 6,615,717.29 is: 9,129,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121,989.04 : 16,728,699.19 = 6,615,717.29 : x
  2. Step 2: Convert to fraction form
    12,121,989.04/16,728,699.19 = 6,615,717.29/x
  3. Step 3: Cross multiply
    12,121,989.04x = 16,728,699.19 × 6,615,717.29
  4. Step 4: Simplify right side
    12,121,989.04x = 110,672,344,370,309.20
  5. Step 5: Solve for x
    x = 110,672,344,370,309.20/12,121,989.04
  6. Step 6: Final answer
    x = 9,129,883.23

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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.