Home / 18,763,915.21-28,164,073.44-9,055,360.81

Finding the Fourth Proportional to 18,763,915.21, 28,164,073.44 and 9,055,360.81

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Solution

The fourth proportional to 18,763,915.21, 28,164,073.44 and 9,055,360.81 is: 13,591,824.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763,915.21 : 28,164,073.44 = 9,055,360.81 : x
  2. Step 2: Convert to fraction form
    18,763,915.21/28,164,073.44 = 9,055,360.81/x
  3. Step 3: Cross multiply
    18,763,915.21x = 28,164,073.44 × 9,055,360.81
  4. Step 4: Simplify right side
    18,763,915.21x = 255,035,846,947,700.56
  5. Step 5: Solve for x
    x = 255,035,846,947,700.56/18,763,915.21
  6. Step 6: Final answer
    x = 13,591,824.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.