Finding the Fourth Proportional to 981,330,745.68, 1,472,008,940.16 and 326,281,771.92
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Solution
The fourth proportional to 981,330,745.68, 1,472,008,940.16 and 326,281,771.92 is: 489,426,920.94
Step by Step Solution
- Step 1: Write the proportion equation
981,330,745.68 : 1,472,008,940.16 = 326,281,771.92 : x - Step 2: Convert to fraction form
981,330,745.68/1,472,008,940.16 = 326,281,771.92/x - Step 3: Cross multiply
981,330,745.68x = 1,472,008,940.16 × 326,281,771.92 - Step 4: Simplify right side
981,330,745.68x = 480,289,685,277,486,080 - Step 5: Solve for x
x = 480,289,685,277,486,080/981,330,745.68 - Step 6: Final answer
x = 489,426,920.94
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1.5x scale
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.