Finding the Fourth Proportional to 164,482,651.80, 246,723,977.70 and 138,654,619.20
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Solution
The fourth proportional to 164,482,651.80, 246,723,977.70 and 138,654,619.20 is: 207,981,928.80
Step by Step Solution
- Step 1: Write the proportion equation
164,482,651.80 : 246,723,977.70 = 138,654,619.20 : x - Step 2: Convert to fraction form
164,482,651.80/246,723,977.70 = 138,654,619.20/x - Step 3: Cross multiply
164,482,651.80x = 246,723,977.70 × 138,654,619.20 - Step 4: Simplify right side
164,482,651.80x = 34,209,419,175,502,788 - Step 5: Solve for x
x = 34,209,419,175,502,788/164,482,651.80 - Step 6: Final answer
x = 207,981,928.80
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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.