Finding the Fourth Proportional to 3,167,618,119.95, 4,371,317,334.30 and 1,719,193,993.60
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Solution
The fourth proportional to 3,167,618,119.95, 4,371,317,334.30 and 1,719,193,993.60 is: 2,372,490,060.56
Step by Step Solution
- Step 1: Write the proportion equation
3,167,618,119.95 : 4,371,317,334.30 = 1,719,193,993.60 : x - Step 2: Convert to fraction form
3,167,618,119.95/4,371,317,334.30 = 1,719,193,993.60/x - Step 3: Cross multiply
3,167,618,119.95x = 4,371,317,334.30 × 1,719,193,993.60 - Step 4: Simplify right side
3,167,618,119.95x = 7,515,142,505,221,967,872 - Step 5: Solve for x
x = 7,515,142,505,221,967,872/3,167,618,119.95 - Step 6: Final answer
x = 2,372,490,060.56
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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.