Finding the Fourth Proportional to 76,875,951.08, 105,992,464.74 and 49,325,272.04
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Solution
The fourth proportional to 76,875,951.08, 105,992,464.74 and 49,325,272.04 is: 68,007,056.62
Step by Step Solution
- Step 1: Write the proportion equation
76,875,951.08 : 105,992,464.74 = 49,325,272.04 : x - Step 2: Convert to fraction form
76,875,951.08/105,992,464.74 = 49,325,272.04/x - Step 3: Cross multiply
76,875,951.08x = 105,992,464.74 × 49,325,272.04 - Step 4: Simplify right side
76,875,951.08x = 5,228,107,157,490,608 - Step 5: Solve for x
x = 5,228,107,157,490,608/76,875,951.08 - Step 6: Final answer
x = 68,007,056.62
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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.