Finding the Fourth Proportional to 81,522,445.55, 122,190,192.29 and 40,490,181.18
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Solution
The fourth proportional to 81,522,445.55, 122,190,192.29 and 40,490,181.18 is: 60,688,844.54
Step by Step Solution
- Step 1: Write the proportion equation
81,522,445.55 : 122,190,192.29 = 40,490,181.18 : x - Step 2: Convert to fraction form
81,522,445.55/122,190,192.29 = 40,490,181.18/x - Step 3: Cross multiply
81,522,445.55x = 122,190,192.29 × 40,490,181.18 - Step 4: Simplify right side
81,522,445.55x = 4,947,503,024,342,365 - Step 5: Solve for x
x = 4,947,503,024,342,365/81,522,445.55 - Step 6: Final answer
x = 60,688,844.54
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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.