Home / 396,209,408.80-594,314,113.20-123,579,738.40

Finding the Fourth Proportional to 396,209,408.80, 594,314,113.20 and 123,579,738.40

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Solution

The fourth proportional to 396,209,408.80, 594,314,113.20 and 123,579,738.40 is: 185,369,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,209,408.80 : 594,314,113.20 = 123,579,738.40 : x
  2. Step 2: Convert to fraction form
    396,209,408.80/594,314,113.20 = 123,579,738.40/x
  3. Step 3: Cross multiply
    396,209,408.80x = 594,314,113.20 × 123,579,738.40
  4. Step 4: Simplify right side
    396,209,408.80x = 73,445,182,636,684,000
  5. Step 5: Solve for x
    x = 73,445,182,636,684,000/396,209,408.80
  6. Step 6: Final answer
    x = 185,369,607.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.