Home / 12,381,874.70-17,089,015.59-7,225,220.30

Finding the Fourth Proportional to 12,381,874.70, 17,089,015.59 and 7,225,220.30

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Solution

The fourth proportional to 12,381,874.70, 17,089,015.59 and 7,225,220.30 is: 9,971,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,874.70 : 17,089,015.59 = 7,225,220.30 : x
  2. Step 2: Convert to fraction form
    12,381,874.70/17,089,015.59 = 7,225,220.30/x
  3. Step 3: Cross multiply
    12,381,874.70x = 17,089,015.59 × 7,225,220.30
  4. Step 4: Simplify right side
    12,381,874.70x = 123,471,902,347,884.47
  5. Step 5: Solve for x
    x = 123,471,902,347,884.47/12,381,874.70
  6. Step 6: Final answer
    x = 9,971,987.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.