Finding the Fourth Proportional to 209,011,551.18, 288,010,566.99 and 161,681,084.70
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Solution
The fourth proportional to 209,011,551.18, 288,010,566.99 and 161,681,084.70 is: 222,790,848.70
Step by Step Solution
- Step 1: Write the proportion equation
209,011,551.18 : 288,010,566.99 = 161,681,084.70 : x - Step 2: Convert to fraction form
209,011,551.18/288,010,566.99 = 161,681,084.70/x - Step 3: Cross multiply
209,011,551.18x = 288,010,566.99 × 161,681,084.70 - Step 4: Simplify right side
209,011,551.18x = 46,565,860,876,005,216 - Step 5: Solve for x
x = 46,565,860,876,005,216/209,011,551.18 - Step 6: Final answer
x = 222,790,848.70
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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.