Finding the Fourth Proportional to 19,624,117.20, 29,436,175.80 and 16,638,133.20
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Solution
The fourth proportional to 19,624,117.20, 29,436,175.80 and 16,638,133.20 is: 24,957,199.80
Step by Step Solution
- Step 1: Write the proportion equation
19,624,117.20 : 29,436,175.80 = 16,638,133.20 : x - Step 2: Convert to fraction form
19,624,117.20/29,436,175.80 = 16,638,133.20/x - Step 3: Cross multiply
19,624,117.20x = 29,436,175.80 × 16,638,133.20 - Step 4: Simplify right side
19,624,117.20x = 489,763,013,859,016.56 - Step 5: Solve for x
x = 489,763,013,859,016.56/19,624,117.20 - Step 6: Final answer
x = 24,957,199.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.