Finding the Fourth Proportional to 21,354,113.29, 29,468,519.18 and 11,564,330.37
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Solution
The fourth proportional to 21,354,113.29, 29,468,519.18 and 11,564,330.37 is: 15,958,690.80
Step by Step Solution
- Step 1: Write the proportion equation
21,354,113.29 : 29,468,519.18 = 11,564,330.37 : x - Step 2: Convert to fraction form
21,354,113.29/29,468,519.18 = 11,564,330.37/x - Step 3: Cross multiply
21,354,113.29x = 29,468,519.18 × 11,564,330.37 - Step 4: Simplify right side
21,354,113.29x = 340,783,691,341,112.31 - Step 5: Solve for x
x = 340,783,691,341,112.31/21,354,113.29 - Step 6: Final answer
x = 15,958,690.80
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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.