Finding the Fourth Proportional to 71,286,888.08, 98,375,657.64 and 38,691,840.08
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Solution
The fourth proportional to 71,286,888.08, 98,375,657.64 and 38,691,840.08 is: 53,394,604.75
Step by Step Solution
- Step 1: Write the proportion equation
71,286,888.08 : 98,375,657.64 = 38,691,840.08 : x - Step 2: Convert to fraction form
71,286,888.08/98,375,657.64 = 38,691,840.08/x - Step 3: Cross multiply
71,286,888.08x = 98,375,657.64 × 38,691,840.08 - Step 4: Simplify right side
71,286,888.08x = 3,806,335,213,171,710 - Step 5: Solve for x
x = 3,806,335,213,171,710/71,286,888.08 - Step 6: Final answer
x = 53,394,604.75
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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.