Finding the Fourth Proportional to 21,493,351.54, 29,653,035.69 and 12,195,536.05
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Solution
The fourth proportional to 21,493,351.54, 29,653,035.69 and 12,195,536.05 is: 16,825,419.95
Step by Step Solution
- Step 1: Write the proportion equation
21,493,351.54 : 29,653,035.69 = 12,195,536.05 : x - Step 2: Convert to fraction form
21,493,351.54/29,653,035.69 = 12,195,536.05/x - Step 3: Cross multiply
21,493,351.54x = 29,653,035.69 × 12,195,536.05 - Step 4: Simplify right side
21,493,351.54x = 361,634,665,749,331.69 - Step 5: Solve for x
x = 361,634,665,749,331.69/21,493,351.54 - Step 6: Final answer
x = 16,825,419.95
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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.