Finding the Fourth Proportional to 522,638,374.01, 721,258,656.63 and 284,492,245.55
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Solution
The fourth proportional to 522,638,374.01, 721,258,656.63 and 284,492,245.55 is: 392,608,933.92
Step by Step Solution
- Step 1: Write the proportion equation
522,638,374.01 : 721,258,656.63 = 284,492,245.55 : x - Step 2: Convert to fraction form
522,638,374.01/721,258,656.63 = 284,492,245.55/x - Step 3: Cross multiply
522,638,374.01x = 721,258,656.63 × 284,492,245.55 - Step 4: Simplify right side
522,638,374.01x = 205,192,494,847,045,088 - Step 5: Solve for x
x = 205,192,494,847,045,088/522,638,374.01 - Step 6: Final answer
x = 392,608,933.92
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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.