Finding the Fourth Proportional to 8,538,220.98, 11,782,709.73 and 4,617,981.48
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Solution
The fourth proportional to 8,538,220.98, 11,782,709.73 and 4,617,981.48 is: 6,372,795.39
Step by Step Solution
- Step 1: Write the proportion equation
8,538,220.98 : 11,782,709.73 = 4,617,981.48 : x - Step 2: Convert to fraction form
8,538,220.98/11,782,709.73 = 4,617,981.48/x - Step 3: Cross multiply
8,538,220.98x = 11,782,709.73 × 4,617,981.48 - Step 4: Simplify right side
8,538,220.98x = 54,412,335,335,267.62 - Step 5: Solve for x
x = 54,412,335,335,267.62/8,538,220.98 - Step 6: Final answer
x = 6,372,795.39
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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.