Finding the Fourth Proportional to 212,215,925.36, 318,323,861.04 and 58,861,980.96
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Solution
The fourth proportional to 212,215,925.36, 318,323,861.04 and 58,861,980.96 is: 88,292,963.95
Step by Step Solution
- Step 1: Write the proportion equation
212,215,925.36 : 318,323,861.04 = 58,861,980.96 : x - Step 2: Convert to fraction form
212,215,925.36/318,323,861.04 = 58,861,980.96/x - Step 3: Cross multiply
212,215,925.36x = 318,323,861.04 × 58,861,980.96 - Step 4: Simplify right side
212,215,925.36x = 18,737,173,047,650,168 - Step 5: Solve for x
x = 18,737,173,047,650,168/212,215,925.36 - Step 6: Final answer
x = 88,292,963.95
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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.