Finding the Fourth Proportional to 253,450,647.84, 380,335,898.76 and 107,883,976.80
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Solution
The fourth proportional to 253,450,647.84, 380,335,898.76 and 107,883,976.80 is: 161,894,039.84
Step by Step Solution
- Step 1: Write the proportion equation
253,450,647.84 : 380,335,898.76 = 107,883,976.80 : x - Step 2: Convert to fraction form
253,450,647.84/380,335,898.76 = 107,883,976.80/x - Step 3: Cross multiply
253,450,647.84x = 380,335,898.76 × 107,883,976.80 - Step 4: Simplify right side
253,450,647.84x = 41,032,149,278,030,984 - Step 5: Solve for x
x = 41,032,149,278,030,984/253,450,647.84 - Step 6: Final answer
x = 161,894,039.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.