Home / 279,310,644.42-385,419,692.22-172,002,907.98

Finding the Fourth Proportional to 279,310,644.42, 385,419,692.22 and 172,002,907.98

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Solution

The fourth proportional to 279,310,644.42, 385,419,692.22 and 172,002,907.98 is: 237,346,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,310,644.42 : 385,419,692.22 = 172,002,907.98 : x
  2. Step 2: Convert to fraction form
    279,310,644.42/385,419,692.22 = 172,002,907.98/x
  3. Step 3: Cross multiply
    279,310,644.42x = 385,419,692.22 × 172,002,907.98
  4. Step 4: Simplify right side
    279,310,644.42x = 66,293,307,854,596,584
  5. Step 5: Solve for x
    x = 66,293,307,854,596,584/279,310,644.42
  6. Step 6: Final answer
    x = 237,346,156.26

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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.