Finding the Fourth Proportional to 159,836,413.42, 220,573,439.58 and 86,497,555.42
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Solution
The fourth proportional to 159,836,413.42, 220,573,439.58 and 86,497,555.42 is: 119,366,187.63
Step by Step Solution
- Step 1: Write the proportion equation
159,836,413.42 : 220,573,439.58 = 86,497,555.42 : x - Step 2: Convert to fraction form
159,836,413.42/220,573,439.58 = 86,497,555.42/x - Step 3: Cross multiply
159,836,413.42x = 220,573,439.58 × 86,497,555.42 - Step 4: Simplify right side
159,836,413.42x = 19,079,063,314,251,072 - Step 5: Solve for x
x = 19,079,063,314,251,072/159,836,413.42 - Step 6: Final answer
x = 119,366,187.63
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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.