Finding the Fourth Proportional to 4,328,136.90, 6,492,205.35 and 4,143,845.70
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Solution
The fourth proportional to 4,328,136.90, 6,492,205.35 and 4,143,845.70 is: 6,215,768.55
Step by Step Solution
- Step 1: Write the proportion equation
4,328,136.90 : 6,492,205.35 = 4,143,845.70 : x - Step 2: Convert to fraction form
4,328,136.90/6,492,205.35 = 4,143,845.70/x - Step 3: Cross multiply
4,328,136.90x = 6,492,205.35 × 4,143,845.70 - Step 4: Simplify right side
4,328,136.90x = 26,902,697,223,114.50 - Step 5: Solve for x
x = 26,902,697,223,114.50/4,328,136.90 - Step 6: Final answer
x = 6,215,768.55
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Double scale
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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.