Finding the Fourth Proportional to 291,034,194.70, 436,551,292.05 and 251,920,137.10
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Solution
The fourth proportional to 291,034,194.70, 436,551,292.05 and 251,920,137.10 is: 377,880,205.65
Step by Step Solution
- Step 1: Write the proportion equation
291,034,194.70 : 436,551,292.05 = 251,920,137.10 : x - Step 2: Convert to fraction form
291,034,194.70/436,551,292.05 = 251,920,137.10/x - Step 3: Cross multiply
291,034,194.70x = 436,551,292.05 × 251,920,137.10 - Step 4: Simplify right side
291,034,194.70x = 109,976,061,344,418,144 - Step 5: Solve for x
x = 109,976,061,344,418,144/291,034,194.70 - Step 6: Final answer
x = 377,880,205.65
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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.