Finding the Fourth Proportional to 453,728,446.49, 626,164,506.35 and 252,785,142.38
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Solution
The fourth proportional to 453,728,446.49, 626,164,506.35 and 252,785,142.38 is: 348,854,221.32
Step by Step Solution
- Step 1: Write the proportion equation
453,728,446.49 : 626,164,506.35 = 252,785,142.38 : x - Step 2: Convert to fraction form
453,728,446.49/626,164,506.35 = 252,785,142.38/x - Step 3: Cross multiply
453,728,446.49x = 626,164,506.35 × 252,785,142.38 - Step 4: Simplify right side
453,728,446.49x = 158,285,083,891,619,104 - Step 5: Solve for x
x = 158,285,083,891,619,104/453,728,446.49 - Step 6: Final answer
x = 348,854,221.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.