Finding the Fourth Proportional to 28,643,741.64, 39,529,203.66 and 15,591,852
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Solution
The fourth proportional to 28,643,741.64, 39,529,203.66 and 15,591,852 is: 21,517,213.11
Step by Step Solution
- Step 1: Write the proportion equation
28,643,741.64 : 39,529,203.66 = 15,591,852 : x - Step 2: Convert to fraction form
28,643,741.64/39,529,203.66 = 15,591,852/x - Step 3: Cross multiply
28,643,741.64x = 39,529,203.66 × 15,591,852 - Step 4: Simplify right side
28,643,741.64x = 616,333,493,144,578.25 - Step 5: Solve for x
x = 616,333,493,144,578.25/28,643,741.64 - Step 6: Final answer
x = 21,517,213.11
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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.