Home / 20,956,040.64-28,919,979.05-11,664,126.91

Finding the Fourth Proportional to 20,956,040.64, 28,919,979.05 and 11,664,126.91

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Solution

The fourth proportional to 20,956,040.64, 28,919,979.05 and 11,664,126.91 is: 16,096,853.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,040.64 : 28,919,979.05 = 11,664,126.91 : x
  2. Step 2: Convert to fraction form
    20,956,040.64/28,919,979.05 = 11,664,126.91/x
  3. Step 3: Cross multiply
    20,956,040.64x = 28,919,979.05 × 11,664,126.91
  4. Step 4: Simplify right side
    20,956,040.64x = 337,326,305,873,741.25
  5. Step 5: Solve for x
    x = 337,326,305,873,741.25/20,956,040.64
  6. Step 6: Final answer
    x = 16,096,853.01

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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.