Home / 20,836,494.96-28,747,167-13,102,125.84

Finding the Fourth Proportional to 20,836,494.96, 28,747,167 and 13,102,125.84

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Solution

The fourth proportional to 20,836,494.96, 28,747,167 and 13,102,125.84 is: 18,076,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,494.96 : 28,747,167 = 13,102,125.84 : x
  2. Step 2: Convert to fraction form
    20,836,494.96/28,747,167 = 13,102,125.84/x
  3. Step 3: Cross multiply
    20,836,494.96x = 28,747,167 × 13,102,125.84
  4. Step 4: Simplify right side
    20,836,494.96x = 376,648,999,577,495.25
  5. Step 5: Solve for x
    x = 376,648,999,577,495.25/20,836,494.96
  6. Step 6: Final answer
    x = 18,076,408.74

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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.