Home / 3,865,308.05-5,334,189.19-2,123,138.45

Finding the Fourth Proportional to 3,865,308.05, 5,334,189.19 and 2,123,138.45

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Solution

The fourth proportional to 3,865,308.05, 5,334,189.19 and 2,123,138.45 is: 2,929,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,308.05 : 5,334,189.19 = 2,123,138.45 : x
  2. Step 2: Convert to fraction form
    3,865,308.05/5,334,189.19 = 2,123,138.45/x
  3. Step 3: Cross multiply
    3,865,308.05x = 5,334,189.19 × 2,123,138.45
  4. Step 4: Simplify right side
    3,865,308.05x = 11,325,222,158,828.82
  5. Step 5: Solve for x
    x = 11,325,222,158,828.82/3,865,308.05
  6. Step 6: Final answer
    x = 2,929,966.26

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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.