Finding the Fourth Proportional to 13,362,274.72, 18,440,347.70 and 7,854,639.02
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Solution
The fourth proportional to 13,362,274.72, 18,440,347.70 and 7,854,639.02 is: 10,839,642.02
Step by Step Solution
- Step 1: Write the proportion equation
13,362,274.72 : 18,440,347.70 = 7,854,639.02 : x - Step 2: Convert to fraction form
13,362,274.72/18,440,347.70 = 7,854,639.02/x - Step 3: Cross multiply
13,362,274.72x = 18,440,347.70 × 7,854,639.02 - Step 4: Simplify right side
13,362,274.72x = 144,842,274,586,787.25 - Step 5: Solve for x
x = 144,842,274,586,787.25/13,362,274.72 - Step 6: Final answer
x = 10,839,642.02
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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.