Home / 20,408,234.72-28,163,358.59-11,240,877.47

Finding the Fourth Proportional to 20,408,234.72, 28,163,358.59 and 11,240,877.47

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Solution

The fourth proportional to 20,408,234.72, 28,163,358.59 and 11,240,877.47 is: 15,512,407.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,234.72 : 28,163,358.59 = 11,240,877.47 : x
  2. Step 2: Convert to fraction form
    20,408,234.72/28,163,358.59 = 11,240,877.47/x
  3. Step 3: Cross multiply
    20,408,234.72x = 28,163,358.59 × 11,240,877.47
  4. Step 4: Simplify right side
    20,408,234.72x = 316,580,862,856,840.81
  5. Step 5: Solve for x
    x = 316,580,862,856,840.81/20,408,234.72
  6. Step 6: Final answer
    x = 15,512,407.97

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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.