Home / 647,115,461.98-969,132,401.04-413,221,692.58

Finding the Fourth Proportional to 647,115,461.98, 969,132,401.04 and 413,221,692.58

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Solution

The fourth proportional to 647,115,461.98, 969,132,401.04 and 413,221,692.58 is: 618,848,651.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,115,461.98 : 969,132,401.04 = 413,221,692.58 : x
  2. Step 2: Convert to fraction form
    647,115,461.98/969,132,401.04 = 413,221,692.58/x
  3. Step 3: Cross multiply
    647,115,461.98x = 969,132,401.04 × 413,221,692.58
  4. Step 4: Simplify right side
    647,115,461.98x = 400,466,531,090,982,464
  5. Step 5: Solve for x
    x = 400,466,531,090,982,464/647,115,461.98
  6. Step 6: Final answer
    x = 618,848,651.63

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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.