Finding the Fourth Proportional to 11,372,912.73, 15,694,596.81 and 6,478,132.95
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Solution
The fourth proportional to 11,372,912.73, 15,694,596.81 and 6,478,132.95 is: 8,939,810.51
Step by Step Solution
- Step 1: Write the proportion equation
11,372,912.73 : 15,694,596.81 = 6,478,132.95 : x - Step 2: Convert to fraction form
11,372,912.73/15,694,596.81 = 6,478,132.95/x - Step 3: Cross multiply
11,372,912.73x = 15,694,596.81 × 6,478,132.95 - Step 4: Simplify right side
11,372,912.73x = 101,671,684,731,825.89 - Step 5: Solve for x
x = 101,671,684,731,825.89/11,372,912.73 - Step 6: Final answer
x = 8,939,810.51
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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.