Home / 20,836,492.96-28,747,164.24-13,102,123.84

Finding the Fourth Proportional to 20,836,492.96, 28,747,164.24 and 13,102,123.84

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Solution

The fourth proportional to 20,836,492.96, 28,747,164.24 and 13,102,123.84 is: 18,076,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,492.96 : 28,747,164.24 = 13,102,123.84 : x
  2. Step 2: Convert to fraction form
    20,836,492.96/28,747,164.24 = 13,102,123.84/x
  3. Step 3: Cross multiply
    20,836,492.96x = 28,747,164.24 × 13,102,123.84
  4. Step 4: Simplify right side
    20,836,492.96x = 376,648,905,921,299.44
  5. Step 5: Solve for x
    x = 376,648,905,921,299.44/20,836,492.96
  6. Step 6: Final answer
    x = 18,076,405.98

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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.