Finding the Fourth Proportional to 27,676,843.68, 38,194,111.80 and 15,454,138.08
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Solution
The fourth proportional to 27,676,843.68, 38,194,111.80 and 15,454,138.08 is: 21,326,748.25
Step by Step Solution
- Step 1: Write the proportion equation
27,676,843.68 : 38,194,111.80 = 15,454,138.08 : x - Step 2: Convert to fraction form
27,676,843.68/38,194,111.80 = 15,454,138.08/x - Step 3: Cross multiply
27,676,843.68x = 38,194,111.80 × 15,454,138.08 - Step 4: Simplify right side
27,676,843.68x = 590,257,077,600,157.25 - Step 5: Solve for x
x = 590,257,077,600,157.25/27,676,843.68 - Step 6: Final answer
x = 21,326,748.25
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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.