Finding the Fourth Proportional to 31,528,591,968.64, 43,277,694,446 and 27,880,365,239.68
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Solution
The fourth proportional to 31,528,591,968.64, 43,277,694,446 and 27,880,365,239.68 is: 38,269,959,187.71
Step by Step Solution
- Step 1: Write the proportion equation
31,528,591,968.64 : 43,277,694,446 = 27,880,365,239.68 : x - Step 2: Convert to fraction form
31,528,591,968.64/43,277,694,446 = 27,880,365,239.68/x - Step 3: Cross multiply
31,528,591,968.64x = 43,277,694,446 × 27,880,365,239.68 - Step 4: Simplify right side
31,528,591,968.64x = 1,206,597,927,885,750,665,216 - Step 5: Solve for x
x = 1,206,597,927,885,750,665,216/31,528,591,968.64 - Step 6: Final answer
x = 38,269,959,187.71
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.