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Finding the Fourth Proportional to 419,906,090.40, 629,859,135.60 and 304,264,528.80

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Solution

The fourth proportional to 419,906,090.40, 629,859,135.60 and 304,264,528.80 is: 456,396,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,090.40 : 629,859,135.60 = 304,264,528.80 : x
  2. Step 2: Convert to fraction form
    419,906,090.40/629,859,135.60 = 304,264,528.80/x
  3. Step 3: Cross multiply
    419,906,090.40x = 629,859,135.60 × 304,264,528.80
  4. Step 4: Simplify right side
    419,906,090.40x = 191,643,793,103,709,312
  5. Step 5: Solve for x
    x = 191,643,793,103,709,312/419,906,090.40
  6. Step 6: Final answer
    x = 456,396,793.20

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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.