Finding the Fourth Proportional to 315,044,221.20, 472,566,331.80 and 272,576,893.20
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Solution
The fourth proportional to 315,044,221.20, 472,566,331.80 and 272,576,893.20 is: 408,865,339.80
Step by Step Solution
- Step 1: Write the proportion equation
315,044,221.20 : 472,566,331.80 = 272,576,893.20 : x - Step 2: Convert to fraction form
315,044,221.20/472,566,331.80 = 272,576,893.20/x - Step 3: Cross multiply
315,044,221.20x = 472,566,331.80 × 272,576,893.20 - Step 4: Simplify right side
315,044,221.20x = 128,810,662,552,964,368 - Step 5: Solve for x
x = 128,810,662,552,964,368/315,044,221.20 - Step 6: Final answer
x = 408,865,339.80
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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.