Home / 20,836,496.96-28,747,169.76-13,102,127.84

Finding the Fourth Proportional to 20,836,496.96, 28,747,169.76 and 13,102,127.84

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Solution

The fourth proportional to 20,836,496.96, 28,747,169.76 and 13,102,127.84 is: 18,076,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,496.96 : 28,747,169.76 = 13,102,127.84 : x
  2. Step 2: Convert to fraction form
    20,836,496.96/28,747,169.76 = 13,102,127.84/x
  3. Step 3: Cross multiply
    20,836,496.96x = 28,747,169.76 × 13,102,127.84
  4. Step 4: Simplify right side
    20,836,496.96x = 376,649,093,233,702.12
  5. Step 5: Solve for x
    x = 376,649,093,233,702.12/20,836,496.96
  6. Step 6: Final answer
    x = 18,076,411.50

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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.