Home / 3,918,852.36-5,407,968.78-2,199,928.68

Finding the Fourth Proportional to 3,918,852.36, 5,407,968.78 and 2,199,928.68

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Solution

The fourth proportional to 3,918,852.36, 5,407,968.78 and 2,199,928.68 is: 3,035,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,852.36 : 5,407,968.78 = 2,199,928.68 : x
  2. Step 2: Convert to fraction form
    3,918,852.36/5,407,968.78 = 2,199,928.68/x
  3. Step 3: Cross multiply
    3,918,852.36x = 5,407,968.78 × 2,199,928.68
  4. Step 4: Simplify right side
    3,918,852.36x = 11,897,145,619,666.61
  5. Step 5: Solve for x
    x = 11,897,145,619,666.61/3,918,852.36
  6. Step 6: Final answer
    x = 3,035,874.93

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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.