Finding the Fourth Proportional to 13,504,654.68, 18,636,422.90 and 7,393,083.18
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Solution
The fourth proportional to 13,504,654.68, 18,636,422.90 and 7,393,083.18 is: 10,202,454.48
Step by Step Solution
- Step 1: Write the proportion equation
13,504,654.68 : 18,636,422.90 = 7,393,083.18 : x - Step 2: Convert to fraction form
13,504,654.68/18,636,422.90 = 7,393,083.18/x - Step 3: Cross multiply
13,504,654.68x = 18,636,422.90 × 7,393,083.18 - Step 4: Simplify right side
13,504,654.68x = 137,780,624,677,356.81 - Step 5: Solve for x
x = 137,780,624,677,356.81/13,504,654.68 - Step 6: Final answer
x = 10,202,454.48
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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.