Home / 12,471,122.60-18,712,904.70-7,083,909.80

Finding the Fourth Proportional to 12,471,122.60, 18,712,904.70 and 7,083,909.80

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Solution

The fourth proportional to 12,471,122.60, 18,712,904.70 and 7,083,909.80 is: 10,629,398.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471,122.60 : 18,712,904.70 = 7,083,909.80 : x
  2. Step 2: Convert to fraction form
    12,471,122.60/18,712,904.70 = 7,083,909.80/x
  3. Step 3: Cross multiply
    12,471,122.60x = 18,712,904.70 × 7,083,909.80
  4. Step 4: Simplify right side
    12,471,122.60x = 132,560,528,990,796.05
  5. Step 5: Solve for x
    x = 132,560,528,990,796.05/12,471,122.60
  6. Step 6: Final answer
    x = 10,629,398.27

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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.