Home / 396,005,415.21-546,443,150.07-219,800,837.25

Finding the Fourth Proportional to 396,005,415.21, 546,443,150.07 and 219,800,837.25

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Solution

The fourth proportional to 396,005,415.21, 546,443,150.07 and 219,800,837.25 is: 303,300,554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,005,415.21 : 546,443,150.07 = 219,800,837.25 : x
  2. Step 2: Convert to fraction form
    396,005,415.21/546,443,150.07 = 219,800,837.25/x
  3. Step 3: Cross multiply
    396,005,415.21x = 546,443,150.07 × 219,800,837.25
  4. Step 4: Simplify right side
    396,005,415.21x = 120,108,661,894,913,408
  5. Step 5: Solve for x
    x = 120,108,661,894,913,408/396,005,415.21
  6. Step 6: Final answer
    x = 303,300,554.19

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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.