Finding the Fourth Proportional to 315,044,355.20, 472,566,532.80 and 272,577,027.20
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Solution
The fourth proportional to 315,044,355.20, 472,566,532.80 and 272,577,027.20 is: 408,865,540.80
Step by Step Solution
- Step 1: Write the proportion equation
315,044,355.20 : 472,566,532.80 = 272,577,027.20 : x - Step 2: Convert to fraction form
315,044,355.20/472,566,532.80 = 272,577,027.20/x - Step 3: Cross multiply
315,044,355.20x = 472,566,532.80 × 272,577,027.20 - Step 4: Simplify right side
315,044,355.20x = 128,810,780,664,835,296 - Step 5: Solve for x
x = 128,810,780,664,835,296/315,044,355.20 - Step 6: Final answer
x = 408,865,540.80
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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.