Home / 3,858,143.67-5,323,748.93-2,115,354.45

Finding the Fourth Proportional to 3,858,143.67, 5,323,748.93 and 2,115,354.45

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Solution

The fourth proportional to 3,858,143.67, 5,323,748.93 and 2,115,354.45 is: 2,918,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858,143.67 : 5,323,748.93 = 2,115,354.45 : x
  2. Step 2: Convert to fraction form
    3,858,143.67/5,323,748.93 = 2,115,354.45/x
  3. Step 3: Cross multiply
    3,858,143.67x = 5,323,748.93 × 2,115,354.45
  4. Step 4: Simplify right side
    3,858,143.67x = 11,261,615,979,181.47
  5. Step 5: Solve for x
    x = 11,261,615,979,181.47/3,858,143.67
  6. Step 6: Final answer
    x = 2,918,920.84

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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.