Finding the Fourth Proportional to 136,158,439.52, 187,872,948.41 and 81,159,413.60
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Solution
The fourth proportional to 136,158,439.52, 187,872,948.41 and 81,159,413.60 is: 111,984,672.99
Step by Step Solution
- Step 1: Write the proportion equation
136,158,439.52 : 187,872,948.41 = 81,159,413.60 : x - Step 2: Convert to fraction form
136,158,439.52/187,872,948.41 = 81,159,413.60/x - Step 3: Cross multiply
136,158,439.52x = 187,872,948.41 × 81,159,413.60 - Step 4: Simplify right side
136,158,439.52x = 15,247,658,324,322,540 - Step 5: Solve for x
x = 15,247,658,324,322,540/136,158,439.52 - Step 6: Final answer
x = 111,984,672.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.