Home / 12,479,974.60-18,726,182.70-7,092,761.80

Finding the Fourth Proportional to 12,479,974.60, 18,726,182.70 and 7,092,761.80

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Solution

The fourth proportional to 12,479,974.60, 18,726,182.70 and 7,092,761.80 is: 10,642,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,974.60 : 18,726,182.70 = 7,092,761.80 : x
  2. Step 2: Convert to fraction form
    12,479,974.60/18,726,182.70 = 7,092,761.80/x
  3. Step 3: Cross multiply
    12,479,974.60x = 18,726,182.70 × 7,092,761.80
  4. Step 4: Simplify right side
    12,479,974.60x = 132,820,353,314,380.84
  5. Step 5: Solve for x
    x = 132,820,353,314,380.84/12,479,974.60
  6. Step 6: Final answer
    x = 10,642,678.18

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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.