Finding the Fourth Proportional to 35,164,551.78, 48,511,623.48 and 21,218,128.14
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Solution
The fourth proportional to 35,164,551.78, 48,511,623.48 and 21,218,128.14 is: 29,271,689.56
Step by Step Solution
- Step 1: Write the proportion equation
35,164,551.78 : 48,511,623.48 = 21,218,128.14 : x - Step 2: Convert to fraction form
35,164,551.78/48,511,623.48 = 21,218,128.14/x - Step 3: Cross multiply
35,164,551.78x = 48,511,623.48 × 21,218,128.14 - Step 4: Simplify right side
35,164,551.78x = 1,029,325,843,278,072.62 - Step 5: Solve for x
x = 1,029,325,843,278,072.62/35,164,551.78 - Step 6: Final answer
x = 29,271,689.56
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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.