Finding the Fourth Proportional to 37,677,471.12, 51,993,466.92 and 21,378,975.12
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Solution
The fourth proportional to 37,677,471.12, 51,993,466.92 and 21,378,975.12 is: 29,502,166.75
Step by Step Solution
- Step 1: Write the proportion equation
37,677,471.12 : 51,993,466.92 = 21,378,975.12 : x - Step 2: Convert to fraction form
37,677,471.12/51,993,466.92 = 21,378,975.12/x - Step 3: Cross multiply
37,677,471.12x = 51,993,466.92 × 21,378,975.12 - Step 4: Simplify right side
37,677,471.12x = 1,111,567,035,685,223.12 - Step 5: Solve for x
x = 1,111,567,035,685,223.12/37,677,471.12 - Step 6: Final answer
x = 29,502,166.75
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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.