Finding the Fourth Proportional to 472,393,324.20, 708,589,986.30 and 426,476,821.80
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Solution
The fourth proportional to 472,393,324.20, 708,589,986.30 and 426,476,821.80 is: 639,715,232.70
Step by Step Solution
- Step 1: Write the proportion equation
472,393,324.20 : 708,589,986.30 = 426,476,821.80 : x - Step 2: Convert to fraction form
472,393,324.20/708,589,986.30 = 426,476,821.80/x - Step 3: Cross multiply
472,393,324.20x = 708,589,986.30 × 426,476,821.80 - Step 4: Simplify right side
472,393,324.20x = 302,197,205,316,529,536 - Step 5: Solve for x
x = 302,197,205,316,529,536/472,393,324.20 - Step 6: Final answer
x = 639,715,232.70
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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.