Home / 57,352,528.80-86,016,837.60-20,978,053.20

Finding the Fourth Proportional to 57,352,528.80, 86,016,837.60 and 20,978,053.20

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Solution

The fourth proportional to 57,352,528.80, 86,016,837.60 and 20,978,053.20 is: 31,462,706.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,352,528.80 : 86,016,837.60 = 20,978,053.20 : x
  2. Step 2: Convert to fraction form
    57,352,528.80/86,016,837.60 = 20,978,053.20/x
  3. Step 3: Cross multiply
    57,352,528.80x = 86,016,837.60 × 20,978,053.20
  4. Step 4: Simplify right side
    57,352,528.80x = 1,804,465,795,268,560.25
  5. Step 5: Solve for x
    x = 1,804,465,795,268,560.25/57,352,528.80
  6. Step 6: Final answer
    x = 31,462,706.75

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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.