Finding the Fourth Proportional to 7,624,513.80, 11,436,770.70 and 6,561,631.80
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Solution
The fourth proportional to 7,624,513.80, 11,436,770.70 and 6,561,631.80 is: 9,842,447.70
Step by Step Solution
- Step 1: Write the proportion equation
7,624,513.80 : 11,436,770.70 = 6,561,631.80 : x - Step 2: Convert to fraction form
7,624,513.80/11,436,770.70 = 6,561,631.80/x - Step 3: Cross multiply
7,624,513.80x = 11,436,770.70 × 6,561,631.80 - Step 4: Simplify right side
7,624,513.80x = 75,043,878,314,428.25 - Step 5: Solve for x
x = 75,043,878,314,428.25/7,624,513.80 - Step 6: Final answer
x = 9,842,447.70
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1.5x scale
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.