Finding the Fourth Proportional to 863,204,063.42, 1,190,949,679.40 and 528,327,474.14
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Solution
The fourth proportional to 863,204,063.42, 1,190,949,679.40 and 528,327,474.14 is: 728,925,479.63
Step by Step Solution
- Step 1: Write the proportion equation
863,204,063.42 : 1,190,949,679.40 = 528,327,474.14 : x - Step 2: Convert to fraction form
863,204,063.42/1,190,949,679.40 = 528,327,474.14/x - Step 3: Cross multiply
863,204,063.42x = 1,190,949,679.40 × 528,327,474.14 - Step 4: Simplify right side
863,204,063.42x = 629,211,435,945,580,544 - Step 5: Solve for x
x = 629,211,435,945,580,544/863,204,063.42 - Step 6: Final answer
x = 728,925,479.63
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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.