Finding the Fourth Proportional to 654,220,479.53, 981,339,266.99 and 217,521,163.68
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Solution
The fourth proportional to 654,220,479.53, 981,339,266.99 and 217,521,163.68 is: 326,284,587.54
Step by Step Solution
- Step 1: Write the proportion equation
654,220,479.53 : 981,339,266.99 = 217,521,163.68 : x - Step 2: Convert to fraction form
654,220,479.53/981,339,266.99 = 217,521,163.68/x - Step 3: Cross multiply
654,220,479.53x = 981,339,266.99 × 217,521,163.68 - Step 4: Simplify right side
654,220,479.53x = 213,462,059,320,543,008 - Step 5: Solve for x
x = 213,462,059,320,543,008/654,220,479.53 - Step 6: Final answer
x = 326,284,587.54
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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.