Finding the Fourth Proportional to 28,495,313.67, 39,323,566.17 and 15,442,571.91
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Solution
The fourth proportional to 28,495,313.67, 39,323,566.17 and 15,442,571.91 is: 21,310,767.29
Step by Step Solution
- Step 1: Write the proportion equation
28,495,313.67 : 39,323,566.17 = 15,442,571.91 : x - Step 2: Convert to fraction form
28,495,313.67/39,323,566.17 = 15,442,571.91/x - Step 3: Cross multiply
28,495,313.67x = 39,323,566.17 × 15,442,571.91 - Step 4: Simplify right side
28,495,313.67x = 607,256,998,337,868.38 - Step 5: Solve for x
x = 607,256,998,337,868.38/28,495,313.67 - Step 6: Final answer
x = 21,310,767.29
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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.