Home / 20,673,120.51-31,012,517.79-7,022,602.80

Finding the Fourth Proportional to 20,673,120.51, 31,012,517.79 and 7,022,602.80

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Solution

The fourth proportional to 20,673,120.51, 31,012,517.79 and 7,022,602.80 is: 10,534,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673,120.51 : 31,012,517.79 = 7,022,602.80 : x
  2. Step 2: Convert to fraction form
    20,673,120.51/31,012,517.79 = 7,022,602.80/x
  3. Step 3: Cross multiply
    20,673,120.51x = 31,012,517.79 × 7,022,602.80
  4. Step 4: Simplify right side
    20,673,120.51x = 217,788,594,267,103.81
  5. Step 5: Solve for x
    x = 217,788,594,267,103.81/20,673,120.51
  6. Step 6: Final answer
    x = 10,534,867.93

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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.