Finding the Fourth Proportional to 21,519,913.75, 29,696,889.36 and 11,730,549.09
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Solution
The fourth proportional to 21,519,913.75, 29,696,889.36 and 11,730,549.09 is: 16,187,835.26
Step by Step Solution
- Step 1: Write the proportion equation
21,519,913.75 : 29,696,889.36 = 11,730,549.09 : x - Step 2: Convert to fraction form
21,519,913.75/29,696,889.36 = 11,730,549.09/x - Step 3: Cross multiply
21,519,913.75x = 29,696,889.36 × 11,730,549.09 - Step 4: Simplify right side
21,519,913.75x = 348,360,818,613,131.56 - Step 5: Solve for x
x = 348,360,818,613,131.56/21,519,913.75 - Step 6: Final answer
x = 16,187,835.26
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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.