Finding the Fourth Proportional to 620,460,372.20, 930,448,415.25 and 270,813,381.08
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Solution
The fourth proportional to 620,460,372.20, 930,448,415.25 and 270,813,381.08 is: 406,114,383.03
Step by Step Solution
- Step 1: Write the proportion equation
620,460,372.20 : 930,448,415.25 = 270,813,381.08 : x - Step 2: Convert to fraction form
620,460,372.20/930,448,415.25 = 270,813,381.08/x - Step 3: Cross multiply
620,460,372.20x = 930,448,415.25 × 270,813,381.08 - Step 4: Simplify right side
620,460,372.20x = 251,977,881,249,728,096 - Step 5: Solve for x
x = 251,977,881,249,728,096/620,460,372.20 - Step 6: Final answer
x = 406,114,383.03
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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.