Finding the Fourth Proportional to 19,961,328.92, 29,958,789.60 and 18,701,616.92
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Solution
The fourth proportional to 19,961,328.92, 29,958,789.60 and 18,701,616.92 is: 28,068,161.63
Step by Step Solution
- Step 1: Write the proportion equation
19,961,328.92 : 29,958,789.60 = 18,701,616.92 : x - Step 2: Convert to fraction form
19,961,328.92/29,958,789.60 = 18,701,616.92/x - Step 3: Cross multiply
19,961,328.92x = 29,958,789.60 × 18,701,616.92 - Step 4: Simplify right side
19,961,328.92x = 560,277,806,486,080.12 - Step 5: Solve for x
x = 560,277,806,486,080.12/19,961,328.92 - Step 6: Final answer
x = 28,068,161.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.