Home / 152,640,942.80-228,961,414.20-91,418,939.60

Finding the Fourth Proportional to 152,640,942.80, 228,961,414.20 and 91,418,939.60

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Solution

The fourth proportional to 152,640,942.80, 228,961,414.20 and 91,418,939.60 is: 137,128,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,640,942.80 : 228,961,414.20 = 91,418,939.60 : x
  2. Step 2: Convert to fraction form
    152,640,942.80/228,961,414.20 = 91,418,939.60/x
  3. Step 3: Cross multiply
    152,640,942.80x = 228,961,414.20 × 91,418,939.60
  4. Step 4: Simplify right side
    152,640,942.80x = 20,931,409,695,480,380
  5. Step 5: Solve for x
    x = 20,931,409,695,480,380/152,640,942.80
  6. Step 6: Final answer
    x = 137,128,409.40

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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.