Finding the Fourth Proportional to 186,319,236.16, 257,121,599.97 and 108,049,261.78
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Solution
The fourth proportional to 186,319,236.16, 257,121,599.97 and 108,049,261.78 is: 149,108,592.53
Step by Step Solution
- Step 1: Write the proportion equation
186,319,236.16 : 257,121,599.97 = 108,049,261.78 : x - Step 2: Convert to fraction form
186,319,236.16/257,121,599.97 = 108,049,261.78/x - Step 3: Cross multiply
186,319,236.16x = 257,121,599.97 × 108,049,261.78 - Step 4: Simplify right side
186,319,236.16x = 27,781,799,064,450,972 - Step 5: Solve for x
x = 27,781,799,064,450,972/186,319,236.16 - Step 6: Final answer
x = 149,108,592.53
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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.