Finding the Fourth Proportional to 290,627,442.18, 401,163,056.73 and 173,189,598.66
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Solution
The fourth proportional to 290,627,442.18, 401,163,056.73 and 173,189,598.66 is: 239,059,561.17
Step by Step Solution
- Step 1: Write the proportion equation
290,627,442.18 : 401,163,056.73 = 173,189,598.66 : x - Step 2: Convert to fraction form
290,627,442.18/401,163,056.73 = 173,189,598.66/x - Step 3: Cross multiply
290,627,442.18x = 401,163,056.73 × 173,189,598.66 - Step 4: Simplify right side
290,627,442.18x = 69,477,268,792,287,512 - Step 5: Solve for x
x = 69,477,268,792,287,512/290,627,442.18 - Step 6: Final answer
x = 239,059,561.17
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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.