Finding the Fourth Proportional to 25,631,691.75, 38,453,837.40 and 7,680,795.75
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Solution
The fourth proportional to 25,631,691.75, 38,453,837.40 and 7,680,795.75 is: 11,523,081.42
Step by Step Solution
- Step 1: Write the proportion equation
25,631,691.75 : 38,453,837.40 = 7,680,795.75 : x - Step 2: Convert to fraction form
25,631,691.75/38,453,837.40 = 7,680,795.75/x - Step 3: Cross multiply
25,631,691.75x = 38,453,837.40 × 7,680,795.75 - Step 4: Simplify right side
25,631,691.75x = 295,356,070,873,111.06 - Step 5: Solve for x
x = 295,356,070,873,111.06/25,631,691.75 - Step 6: Final answer
x = 11,523,081.42
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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.