Finding the Fourth Proportional to 741,528,241.20, 1,112,292,361.80 and 431,166,697.20
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Solution
The fourth proportional to 741,528,241.20, 1,112,292,361.80 and 431,166,697.20 is: 646,750,045.80
Step by Step Solution
- Step 1: Write the proportion equation
741,528,241.20 : 1,112,292,361.80 = 431,166,697.20 : x - Step 2: Convert to fraction form
741,528,241.20/1,112,292,361.80 = 431,166,697.20/x - Step 3: Cross multiply
741,528,241.20x = 1,112,292,361.80 × 431,166,697.20 - Step 4: Simplify right side
741,528,241.20x = 479,583,423,958,093,440 - Step 5: Solve for x
x = 479,583,423,958,093,440/741,528,241.20 - Step 6: Final answer
x = 646,750,045.80
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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.