Finding the Fourth Proportional to 309,382,445,176.29, 426,947,794,871.11 and 172,202,327,455.18
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Solution
The fourth proportional to 309,382,445,176.29, 426,947,794,871.11 and 172,202,327,455.18 is: 237,639,223,313.94
Step by Step Solution
- Step 1: Write the proportion equation
309,382,445,176.29 : 426,947,794,871.11 = 172,202,327,455.18 : x - Step 2: Convert to fraction form
309,382,445,176.29/426,947,794,871.11 = 172,202,327,455.18/x - Step 3: Cross multiply
309,382,445,176.29x = 426,947,794,871.11 × 172,202,327,455.18 - Step 4: Simplify right side
309,382,445,176.29x = 73,521,403,978,661,899,534,336 - Step 5: Solve for x
x = 73,521,403,978,661,899,534,336/309,382,445,176.29 - Step 6: Final answer
x = 237,639,223,313.94
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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.