Finding the Fourth Proportional to 78,052,142.79, 117,032,832.12 and 29,533,744.62
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Solution
The fourth proportional to 78,052,142.79, 117,032,832.12 and 29,533,744.62 is: 44,283,445.05
Step by Step Solution
- Step 1: Write the proportion equation
78,052,142.79 : 117,032,832.12 = 29,533,744.62 : x - Step 2: Convert to fraction form
78,052,142.79/117,032,832.12 = 29,533,744.62/x - Step 3: Cross multiply
78,052,142.79x = 117,032,832.12 × 29,533,744.62 - Step 4: Simplify right side
78,052,142.79x = 3,456,417,775,987,413.50 - Step 5: Solve for x
x = 3,456,417,775,987,413.50/78,052,142.79 - Step 6: Final answer
x = 44,283,445.05
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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.