Finding the Fourth Proportional to 22,476,880.84, 31,017,981.36 and 12,163,603.92
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Solution
The fourth proportional to 22,476,880.84, 31,017,981.36 and 12,163,603.92 is: 16,785,711.61
Step by Step Solution
- Step 1: Write the proportion equation
22,476,880.84 : 31,017,981.36 = 12,163,603.92 : x - Step 2: Convert to fraction form
22,476,880.84/31,017,981.36 = 12,163,603.92/x - Step 3: Cross multiply
22,476,880.84x = 31,017,981.36 × 12,163,603.92 - Step 4: Simplify right side
22,476,880.84x = 377,290,439,660,982.94 - Step 5: Solve for x
x = 377,290,439,660,982.94/22,476,880.84 - Step 6: Final answer
x = 16,785,711.61
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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.