Home / 100,311,862.20-150,467,793.30-85,006,361.40

Finding the Fourth Proportional to 100,311,862.20, 150,467,793.30 and 85,006,361.40

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Solution

The fourth proportional to 100,311,862.20, 150,467,793.30 and 85,006,361.40 is: 127,509,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,311,862.20 : 150,467,793.30 = 85,006,361.40 : x
  2. Step 2: Convert to fraction form
    100,311,862.20/150,467,793.30 = 85,006,361.40/x
  3. Step 3: Cross multiply
    100,311,862.20x = 150,467,793.30 × 85,006,361.40
  4. Step 4: Simplify right side
    100,311,862.20x = 12,790,719,616,320,300
  5. Step 5: Solve for x
    x = 12,790,719,616,320,300/100,311,862.20
  6. Step 6: Final answer
    x = 127,509,542.10

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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.