Finding the Fourth Proportional to 620,573,424.26, 856,397,924.97 and 342,124,912.31
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Solution
The fourth proportional to 620,573,424.26, 856,397,924.97 and 342,124,912.31 is: 472,136,017.32
Step by Step Solution
- Step 1: Write the proportion equation
620,573,424.26 : 856,397,924.97 = 342,124,912.31 : x - Step 2: Convert to fraction form
620,573,424.26/856,397,924.97 = 342,124,912.31/x - Step 3: Cross multiply
620,573,424.26x = 856,397,924.97 × 342,124,912.31 - Step 4: Simplify right side
620,573,424.26x = 292,995,064,982,827,200 - Step 5: Solve for x
x = 292,995,064,982,827,200/620,573,424.26 - Step 6: Final answer
x = 472,136,017.32
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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.