Finding the Fourth Proportional to 5,221,564.91, 7,205,883.72 and 2,929,895.09
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Solution
The fourth proportional to 5,221,564.91, 7,205,883.72 and 2,929,895.09 is: 4,043,324.88
Step by Step Solution
- Step 1: Write the proportion equation
5,221,564.91 : 7,205,883.72 = 2,929,895.09 : x - Step 2: Convert to fraction form
5,221,564.91/7,205,883.72 = 2,929,895.09/x - Step 3: Cross multiply
5,221,564.91x = 7,205,883.72 × 2,929,895.09 - Step 4: Simplify right side
5,221,564.91x = 21,112,483,330,338.93 - Step 5: Solve for x
x = 21,112,483,330,338.93/5,221,564.91 - Step 6: Final answer
x = 4,043,324.88
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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.