Finding the Fourth Proportional to 403,815,912.44, 557,264,857.70 and 225,199,994.75
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Solution
The fourth proportional to 403,815,912.44, 557,264,857.70 and 225,199,994.75 is: 310,775,378.49
Step by Step Solution
- Step 1: Write the proportion equation
403,815,912.44 : 557,264,857.70 = 225,199,994.75 : x - Step 2: Convert to fraction form
403,815,912.44/557,264,857.70 = 225,199,994.75/x - Step 3: Cross multiply
403,815,912.44x = 557,264,857.70 × 225,199,994.75 - Step 4: Simplify right side
403,815,912.44x = 125,496,043,028,271,488 - Step 5: Solve for x
x = 125,496,043,028,271,488/403,815,912.44 - Step 6: Final answer
x = 310,775,378.49
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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.