Finding the Fourth Proportional to 5,256,077.80, 7,881,812.70 and 2,415,245.80
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Solution
The fourth proportional to 5,256,077.80, 7,881,812.70 and 2,415,245.80 is: 3,621,809.98
Step by Step Solution
- Step 1: Write the proportion equation
5,256,077.80 : 7,881,812.70 = 2,415,245.80 : x - Step 2: Convert to fraction form
5,256,077.80/7,881,812.70 = 2,415,245.80/x - Step 3: Cross multiply
5,256,077.80x = 7,881,812.70 × 2,415,245.80 - Step 4: Simplify right side
5,256,077.80x = 19,036,515,020,061.66 - Step 5: Solve for x
x = 19,036,515,020,061.66/5,256,077.80 - Step 6: Final answer
x = 3,621,809.98
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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.