Finding the Fourth Proportional to 10,245,169.62, 14,137,777.80 and 5,661,195.75
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Solution
The fourth proportional to 10,245,169.62, 14,137,777.80 and 5,661,195.75 is: 7,812,142.75
Step by Step Solution
- Step 1: Write the proportion equation
10,245,169.62 : 14,137,777.80 = 5,661,195.75 : x - Step 2: Convert to fraction form
10,245,169.62/14,137,777.80 = 5,661,195.75/x - Step 3: Cross multiply
10,245,169.62x = 14,137,777.80 × 5,661,195.75 - Step 4: Simplify right side
10,245,169.62x = 80,036,727,595,804.36 - Step 5: Solve for x
x = 80,036,727,595,804.36/10,245,169.62 - Step 6: Final answer
x = 7,812,142.75
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1.5x scale
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.