Home / 629,208,692.87-868,410,274.52-378,566,420.63

Finding the Fourth Proportional to 629,208,692.87, 868,410,274.52 and 378,566,420.63

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Solution

The fourth proportional to 629,208,692.87, 868,410,274.52 and 378,566,420.63 is: 522,483,196.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,208,692.87 : 868,410,274.52 = 378,566,420.63 : x
  2. Step 2: Convert to fraction form
    629,208,692.87/868,410,274.52 = 378,566,420.63/x
  3. Step 3: Cross multiply
    629,208,692.87x = 868,410,274.52 × 378,566,420.63
  4. Step 4: Simplify right side
    629,208,692.87x = 328,750,969,261,459,264
  5. Step 5: Solve for x
    x = 328,750,969,261,459,264/629,208,692.87
  6. Step 6: Final answer
    x = 522,483,196.73

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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.