Finding the Fourth Proportional to 18,474,946.08, 25,489,826.16 and 12,893,044.14
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Solution
The fourth proportional to 18,474,946.08, 25,489,826.16 and 12,893,044.14 is: 17,788,493.26
Step by Step Solution
- Step 1: Write the proportion equation
18,474,946.08 : 25,489,826.16 = 12,893,044.14 : x - Step 2: Convert to fraction form
18,474,946.08/25,489,826.16 = 12,893,044.14/x - Step 3: Cross multiply
18,474,946.08x = 25,489,826.16 × 12,893,044.14 - Step 4: Simplify right side
18,474,946.08x = 328,641,453,801,806.75 - Step 5: Solve for x
x = 328,641,453,801,806.75/18,474,946.08 - Step 6: Final answer
x = 17,788,493.26
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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.