Finding the Fourth Proportional to 1,672,245,051.58, 2,307,845,232.60 and 919,690,824.66
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Solution
The fourth proportional to 1,672,245,051.58, 2,307,845,232.60 and 919,690,824.66 is: 1,269,254,217.94
Step by Step Solution
- Step 1: Write the proportion equation
1,672,245,051.58 : 2,307,845,232.60 = 919,690,824.66 : x - Step 2: Convert to fraction form
1,672,245,051.58/2,307,845,232.60 = 919,690,824.66/x - Step 3: Cross multiply
1,672,245,051.58x = 2,307,845,232.60 × 919,690,824.66 - Step 4: Simplify right side
1,672,245,051.58x = 2,122,504,085,146,004,224 - Step 5: Solve for x
x = 2,122,504,085,146,004,224/1,672,245,051.58 - Step 6: Final answer
x = 1,269,254,217.94
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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.