Home / 419,905,328.40-629,857,992.60-266,094,493.20

Finding the Fourth Proportional to 419,905,328.40, 629,857,992.60 and 266,094,493.20

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Solution

The fourth proportional to 419,905,328.40, 629,857,992.60 and 266,094,493.20 is: 399,141,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,328.40 : 629,857,992.60 = 266,094,493.20 : x
  2. Step 2: Convert to fraction form
    419,905,328.40/629,857,992.60 = 266,094,493.20/x
  3. Step 3: Cross multiply
    419,905,328.40x = 629,857,992.60 × 266,094,493.20
  4. Step 4: Simplify right side
    419,905,328.40x = 167,601,743,328,866,336
  5. Step 5: Solve for x
    x = 167,601,743,328,866,336/419,905,328.40
  6. Step 6: Final answer
    x = 399,141,739.80

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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.