Finding the Fourth Proportional to 10,382,350.80, 15,567,305.40 and 5,343,502.80
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Solution
The fourth proportional to 10,382,350.80, 15,567,305.40 and 5,343,502.80 is: 8,012,052.53
Step by Step Solution
- Step 1: Write the proportion equation
10,382,350.80 : 15,567,305.40 = 5,343,502.80 : x - Step 2: Convert to fraction form
10,382,350.80/15,567,305.40 = 5,343,502.80/x - Step 3: Cross multiply
10,382,350.80x = 15,567,305.40 × 5,343,502.80 - Step 4: Simplify right side
10,382,350.80x = 83,183,939,993,355.12 - Step 5: Solve for x
x = 83,183,939,993,355.12/10,382,350.80 - Step 6: Final answer
x = 8,012,052.53
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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.