Home / 12,589,106.40-18,883,659.60-11,171,930.40

Finding the Fourth Proportional to 12,589,106.40, 18,883,659.60 and 11,171,930.40

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Solution

The fourth proportional to 12,589,106.40, 18,883,659.60 and 11,171,930.40 is: 16,757,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,106.40 : 18,883,659.60 = 11,171,930.40 : x
  2. Step 2: Convert to fraction form
    12,589,106.40/18,883,659.60 = 11,171,930.40/x
  3. Step 3: Cross multiply
    12,589,106.40x = 18,883,659.60 × 11,171,930.40
  4. Step 4: Simplify right side
    12,589,106.40x = 210,966,930,748,491.88
  5. Step 5: Solve for x
    x = 210,966,930,748,491.88/12,589,106.40
  6. Step 6: Final answer
    x = 16,757,895.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.