Finding the Fourth Proportional to 512,877,983.40, 769,694,888.70 and 206,390,053.80
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Solution
The fourth proportional to 512,877,983.40, 769,694,888.70 and 206,390,053.80 is: 309,737,158.99
Step by Step Solution
- Step 1: Write the proportion equation
512,877,983.40 : 769,694,888.70 = 206,390,053.80 : x - Step 2: Convert to fraction form
512,877,983.40/769,694,888.70 = 206,390,053.80/x - Step 3: Cross multiply
512,877,983.40x = 769,694,888.70 × 206,390,053.80 - Step 4: Simplify right side
512,877,983.40x = 158,857,369,488,378,016 - Step 5: Solve for x
x = 158,857,369,488,378,016/512,877,983.40 - Step 6: Final answer
x = 309,737,158.99
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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.