Finding the Fourth Proportional to 108,631,031.84, 149,906,260.56 and 61,591,269.84
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Solution
The fourth proportional to 108,631,031.84, 149,906,260.56 and 61,591,269.84 is: 84,993,365.05
Step by Step Solution
- Step 1: Write the proportion equation
108,631,031.84 : 149,906,260.56 = 61,591,269.84 : x - Step 2: Convert to fraction form
108,631,031.84/149,906,260.56 = 61,591,269.84/x - Step 3: Cross multiply
108,631,031.84x = 149,906,260.56 × 61,591,269.84 - Step 4: Simplify right side
108,631,031.84x = 9,232,916,944,856,310 - Step 5: Solve for x
x = 9,232,916,944,856,310/108,631,031.84 - Step 6: Final answer
x = 84,993,365.05
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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.