Finding the Fourth Proportional to 274,816,107.98, 379,244,460.12 and 157,364,138.66
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Solution
The fourth proportional to 274,816,107.98, 379,244,460.12 and 157,364,138.66 is: 217,161,498.46
Step by Step Solution
- Step 1: Write the proportion equation
274,816,107.98 : 379,244,460.12 = 157,364,138.66 : x - Step 2: Convert to fraction form
274,816,107.98/379,244,460.12 = 157,364,138.66/x - Step 3: Cross multiply
274,816,107.98x = 379,244,460.12 × 157,364,138.66 - Step 4: Simplify right side
274,816,107.98x = 59,679,477,809,830,984 - Step 5: Solve for x
x = 59,679,477,809,830,984/274,816,107.98 - Step 6: Final answer
x = 217,161,498.46
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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.