Home / 5,378,354.22-7,421,912.88-2,930,913.15

Finding the Fourth Proportional to 5,378,354.22, 7,421,912.88 and 2,930,913.15

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Solution

The fourth proportional to 5,378,354.22, 7,421,912.88 and 2,930,913.15 is: 4,044,542.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,354.22 : 7,421,912.88 = 2,930,913.15 : x
  2. Step 2: Convert to fraction form
    5,378,354.22/7,421,912.88 = 2,930,913.15/x
  3. Step 3: Cross multiply
    5,378,354.22x = 7,421,912.88 × 2,930,913.15
  4. Step 4: Simplify right side
    5,378,354.22x = 21,752,982,058,146.37
  5. Step 5: Solve for x
    x = 21,752,982,058,146.37/5,378,354.22
  6. Step 6: Final answer
    x = 4,044,542.47

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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.