Home / 57,352,529.30-86,016,838.35-20,978,053.70

Finding the Fourth Proportional to 57,352,529.30, 86,016,838.35 and 20,978,053.70

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Solution

The fourth proportional to 57,352,529.30, 86,016,838.35 and 20,978,053.70 is: 31,462,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,352,529.30 : 86,016,838.35 = 20,978,053.70 : x
  2. Step 2: Convert to fraction form
    57,352,529.30/86,016,838.35 = 20,978,053.70/x
  3. Step 3: Cross multiply
    57,352,529.30x = 86,016,838.35 × 20,978,053.70
  4. Step 4: Simplify right side
    57,352,529.30x = 1,804,465,854,010,519.25
  5. Step 5: Solve for x
    x = 1,804,465,854,010,519.25/57,352,529.30
  6. Step 6: Final answer
    x = 31,462,707.50

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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.