Finding the Fourth Proportional to 229,128,918.26, 316,197,889.66 and 124,707,738.28
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Solution
The fourth proportional to 229,128,918.26, 316,197,889.66 and 124,707,738.28 is: 172,096,669.28
Step by Step Solution
- Step 1: Write the proportion equation
229,128,918.26 : 316,197,889.66 = 124,707,738.28 : x - Step 2: Convert to fraction form
229,128,918.26/316,197,889.66 = 124,707,738.28/x - Step 3: Cross multiply
229,128,918.26x = 316,197,889.66 × 124,707,738.28 - Step 4: Simplify right side
229,128,918.26x = 39,432,323,668,407,600 - Step 5: Solve for x
x = 39,432,323,668,407,600/229,128,918.26 - Step 6: Final answer
x = 172,096,669.28
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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.