Finding the Fourth Proportional to 825,616,413.63, 1,238,427,167.90 and 203,831,716.95
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Solution
The fourth proportional to 825,616,413.63, 1,238,427,167.90 and 203,831,716.95 is: 305,748,204.35
Step by Step Solution
- Step 1: Write the proportion equation
825,616,413.63 : 1,238,427,167.90 = 203,831,716.95 : x - Step 2: Convert to fraction form
825,616,413.63/1,238,427,167.90 = 203,831,716.95/x - Step 3: Cross multiply
825,616,413.63x = 1,238,427,167.90 × 203,831,716.95 - Step 4: Simplify right side
825,616,413.63x = 252,430,735,949,563,744 - Step 5: Solve for x
x = 252,430,735,949,563,744/825,616,413.63 - Step 6: Final answer
x = 305,748,204.35
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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.