Finding the Fourth Proportional to 91,102,859.62, 125,721,946.28 and 49,849,752
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Solution
The fourth proportional to 91,102,859.62, 125,721,946.28 and 49,849,752 is: 68,792,657.76
Step by Step Solution
- Step 1: Write the proportion equation
91,102,859.62 : 125,721,946.28 = 49,849,752 : x - Step 2: Convert to fraction form
91,102,859.62/125,721,946.28 = 49,849,752/x - Step 3: Cross multiply
91,102,859.62x = 125,721,946.28 × 49,849,752 - Step 4: Simplify right side
91,102,859.62x = 6,267,207,843,015,323 - Step 5: Solve for x
x = 6,267,207,843,015,323/91,102,859.62 - Step 6: Final answer
x = 68,792,657.76
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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.