Finding the Fourth Proportional to 285,319,045.74, 393,733,621.80 and 167,851,940.70
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Solution
The fourth proportional to 285,319,045.74, 393,733,621.80 and 167,851,940.70 is: 231,631,759.34
Step by Step Solution
- Step 1: Write the proportion equation
285,319,045.74 : 393,733,621.80 = 167,851,940.70 : x - Step 2: Convert to fraction form
285,319,045.74/393,733,621.80 = 167,851,940.70/x - Step 3: Cross multiply
285,319,045.74x = 393,733,621.80 × 167,851,940.70 - Step 4: Simplify right side
285,319,045.74x = 66,088,952,537,969,824 - Step 5: Solve for x
x = 66,088,952,537,969,824/285,319,045.74 - Step 6: Final answer
x = 231,631,759.34
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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.