Finding the Fourth Proportional to 647,381,427.87, 893,468,193.81 and 424,550,578.53
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Solution
The fourth proportional to 647,381,427.87, 893,468,193.81 and 424,550,578.53 is: 585,933,457.85
Step by Step Solution
- Step 1: Write the proportion equation
647,381,427.87 : 893,468,193.81 = 424,550,578.53 : x - Step 2: Convert to fraction form
647,381,427.87/893,468,193.81 = 424,550,578.53/x - Step 3: Cross multiply
647,381,427.87x = 893,468,193.81 × 424,550,578.53 - Step 4: Simplify right side
647,381,427.87x = 379,322,438,580,189,632 - Step 5: Solve for x
x = 379,322,438,580,189,632/647,381,427.87 - Step 6: Final answer
x = 585,933,457.85
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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.