Home / 100,608,969.20-150,913,453.80-80,453,577.20

Finding the Fourth Proportional to 100,608,969.20, 150,913,453.80 and 80,453,577.20

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Solution

The fourth proportional to 100,608,969.20, 150,913,453.80 and 80,453,577.20 is: 120,680,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,608,969.20 : 150,913,453.80 = 80,453,577.20 : x
  2. Step 2: Convert to fraction form
    100,608,969.20/150,913,453.80 = 80,453,577.20/x
  3. Step 3: Cross multiply
    100,608,969.20x = 150,913,453.80 × 80,453,577.20
  4. Step 4: Simplify right side
    100,608,969.20x = 12,141,527,205,816,934
  5. Step 5: Solve for x
    x = 12,141,527,205,816,934/100,608,969.20
  6. Step 6: Final answer
    x = 120,680,365.80

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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.