Finding the Fourth Proportional to 620,573,427.26, 856,397,929.11 and 342,124,915.31
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Solution
The fourth proportional to 620,573,427.26, 856,397,929.11 and 342,124,915.31 is: 472,136,021.46
Step by Step Solution
- Step 1: Write the proportion equation
620,573,427.26 : 856,397,929.11 = 342,124,915.31 : x - Step 2: Convert to fraction form
620,573,427.26/856,397,929.11 = 342,124,915.31/x - Step 3: Cross multiply
620,573,427.26x = 856,397,929.11 × 342,124,915.31 - Step 4: Simplify right side
620,573,427.26x = 292,995,068,968,418,112 - Step 5: Solve for x
x = 292,995,068,968,418,112/620,573,427.26 - Step 6: Final answer
x = 472,136,021.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.