Finding the Fourth Proportional to 85,368,319.75, 117,824,241.09 and 48,698,890.75
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Solution
The fourth proportional to 85,368,319.75, 117,824,241.09 and 48,698,890.75 is: 67,213,573.62
Step by Step Solution
- Step 1: Write the proportion equation
85,368,319.75 : 117,824,241.09 = 48,698,890.75 : x - Step 2: Convert to fraction form
85,368,319.75/117,824,241.09 = 48,698,890.75/x - Step 3: Cross multiply
85,368,319.75x = 117,824,241.09 × 48,698,890.75 - Step 4: Simplify right side
85,368,319.75x = 5,737,909,844,543,571 - Step 5: Solve for x
x = 5,737,909,844,543,571/85,368,319.75 - Step 6: Final answer
x = 67,213,573.62
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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.