Home / 57,352,557.30-86,016,880.35-20,978,081.70

Finding the Fourth Proportional to 57,352,557.30, 86,016,880.35 and 20,978,081.70

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Solution

The fourth proportional to 57,352,557.30, 86,016,880.35 and 20,978,081.70 is: 31,462,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,352,557.30 : 86,016,880.35 = 20,978,081.70 : x
  2. Step 2: Convert to fraction form
    57,352,557.30/86,016,880.35 = 20,978,081.70/x
  3. Step 3: Cross multiply
    57,352,557.30x = 86,016,880.35 × 20,978,081.70
  4. Step 4: Simplify right side
    57,352,557.30x = 1,804,469,143,561,424.50
  5. Step 5: Solve for x
    x = 1,804,469,143,561,424.50/57,352,557.30
  6. Step 6: Final answer
    x = 31,462,749.50

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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.