Finding the Fourth Proportional to 347,645,946.80, 521,468,920.20 and 132,207,201.20
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Solution
The fourth proportional to 347,645,946.80, 521,468,920.20 and 132,207,201.20 is: 198,310,801.80
Step by Step Solution
- Step 1: Write the proportion equation
347,645,946.80 : 521,468,920.20 = 132,207,201.20 : x - Step 2: Convert to fraction form
347,645,946.80/521,468,920.20 = 132,207,201.20/x - Step 3: Cross multiply
347,645,946.80x = 521,468,920.20 × 132,207,201.20 - Step 4: Simplify right side
347,645,946.80x = 68,941,946,452,428,144 - Step 5: Solve for x
x = 68,941,946,452,428,144/347,645,946.80 - Step 6: Final answer
x = 198,310,801.80
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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.