Home / 20,573,821.72-30,862,015.80-5,427,767.80

Finding the Fourth Proportional to 20,573,821.72, 30,862,015.80 and 5,427,767.80

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Solution

The fourth proportional to 20,573,821.72, 30,862,015.80 and 5,427,767.80 is: 8,141,990.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573,821.72 : 30,862,015.80 = 5,427,767.80 : x
  2. Step 2: Convert to fraction form
    20,573,821.72/30,862,015.80 = 5,427,767.80/x
  3. Step 3: Cross multiply
    20,573,821.72x = 30,862,015.80 × 5,427,767.80
  4. Step 4: Simplify right side
    20,573,821.72x = 167,511,855,602,331.25
  5. Step 5: Solve for x
    x = 167,511,855,602,331.25/20,573,821.72
  6. Step 6: Final answer
    x = 8,141,990.24

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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.