Finding the Fourth Proportional to 212,617,604.20, 297,866,199.80 and 212,617,604.20
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Solution
The fourth proportional to 212,617,604.20, 297,866,199.80 and 212,617,604.20 is: 297,866,199.80
Step by Step Solution
- Step 1: Write the proportion equation
212,617,604.20 : 297,866,199.80 = 212,617,604.20 : x - Step 2: Convert to fraction form
212,617,604.20/297,866,199.80 = 212,617,604.20/x - Step 3: Cross multiply
212,617,604.20x = 297,866,199.80 × 212,617,604.20 - Step 4: Simplify right side
212,617,604.20x = 63,331,597,773,634,520 - Step 5: Solve for x
x = 63,331,597,773,634,520/212,617,604.20 - Step 6: Final answer
x = 297,866,199.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.