Finding the Fourth Proportional to 315,044,349.70, 472,566,524.55 and 272,577,021.70
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Solution
The fourth proportional to 315,044,349.70, 472,566,524.55 and 272,577,021.70 is: 408,865,532.55
Step by Step Solution
- Step 1: Write the proportion equation
315,044,349.70 : 472,566,524.55 = 272,577,021.70 : x - Step 2: Convert to fraction form
315,044,349.70/472,566,524.55 = 272,577,021.70/x - Step 3: Cross multiply
315,044,349.70x = 472,566,524.55 × 272,577,021.70 - Step 4: Simplify right side
315,044,349.70x = 128,810,775,816,958,928 - Step 5: Solve for x
x = 128,810,775,816,958,928/315,044,349.70 - Step 6: Final answer
x = 408,865,532.55
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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.