Home / 21,952,100.80-32,928,151.20-20,720,382.40

Finding the Fourth Proportional to 21,952,100.80, 32,928,151.20 and 20,720,382.40

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Solution

The fourth proportional to 21,952,100.80, 32,928,151.20 and 20,720,382.40 is: 31,080,573.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952,100.80 : 32,928,151.20 = 20,720,382.40 : x
  2. Step 2: Convert to fraction form
    21,952,100.80/32,928,151.20 = 20,720,382.40/x
  3. Step 3: Cross multiply
    21,952,100.80x = 32,928,151.20 × 20,720,382.40
  4. Step 4: Simplify right side
    21,952,100.80x = 682,283,884,589,018.88
  5. Step 5: Solve for x
    x = 682,283,884,589,018.88/21,952,100.80
  6. Step 6: Final answer
    x = 31,080,573.60

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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.