Home / 12,122,032.66-16,728,759.72-6,615,760.68

Finding the Fourth Proportional to 12,122,032.66, 16,728,759.72 and 6,615,760.68

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Solution

The fourth proportional to 12,122,032.66, 16,728,759.72 and 6,615,760.68 is: 9,129,943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122,032.66 : 16,728,759.72 = 6,615,760.68 : x
  2. Step 2: Convert to fraction form
    12,122,032.66/16,728,759.72 = 6,615,760.68/x
  3. Step 3: Cross multiply
    12,122,032.66x = 16,728,759.72 × 6,615,760.68
  4. Step 4: Simplify right side
    12,122,032.66x = 110,673,470,780,743.81
  5. Step 5: Solve for x
    x = 110,673,470,780,743.81/12,122,032.66
  6. Step 6: Final answer
    x = 9,129,943.29

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1.5x scale

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.