Finding the Fourth Proportional to 488,631,118.91, 674,306,193.21 and 363,741,813.23
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Solution
The fourth proportional to 488,631,118.91, 674,306,193.21 and 363,741,813.23 is: 501,960,165.65
Step by Step Solution
- Step 1: Write the proportion equation
488,631,118.91 : 674,306,193.21 = 363,741,813.23 : x - Step 2: Convert to fraction form
488,631,118.91/674,306,193.21 = 363,741,813.23/x - Step 3: Cross multiply
488,631,118.91x = 674,306,193.21 × 363,741,813.23 - Step 4: Simplify right side
488,631,118.91x = 245,273,357,390,424,128 - Step 5: Solve for x
x = 245,273,357,390,424,128/488,631,118.91 - Step 6: Final answer
x = 501,960,165.65
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1.5x scale
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.