Finding the Fourth Proportional to 21,550,457.70, 29,739,216.64 and 11,760,971.95
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Solution
The fourth proportional to 21,550,457.70, 29,739,216.64 and 11,760,971.95 is: 16,229,914.82
Step by Step Solution
- Step 1: Write the proportion equation
21,550,457.70 : 29,739,216.64 = 11,760,971.95 : x - Step 2: Convert to fraction form
21,550,457.70/29,739,216.64 = 11,760,971.95/x - Step 3: Cross multiply
21,550,457.70x = 29,739,216.64 × 11,760,971.95 - Step 4: Simplify right side
21,550,457.70x = 349,762,092,741,265.69 - Step 5: Solve for x
x = 349,762,092,741,265.69/21,550,457.70 - Step 6: Final answer
x = 16,229,914.82
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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.