Finding the Fourth Proportional to 229,128,916.26, 316,197,886.90 and 124,707,736.28
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Solution
The fourth proportional to 229,128,916.26, 316,197,886.90 and 124,707,736.28 is: 172,096,666.52
Step by Step Solution
- Step 1: Write the proportion equation
229,128,916.26 : 316,197,886.90 = 124,707,736.28 : x - Step 2: Convert to fraction form
229,128,916.26/316,197,886.90 = 124,707,736.28/x - Step 3: Cross multiply
229,128,916.26x = 316,197,886.90 × 124,707,736.28 - Step 4: Simplify right side
229,128,916.26x = 39,432,322,691,818,464 - Step 5: Solve for x
x = 39,432,322,691,818,464/229,128,916.26 - Step 6: Final answer
x = 172,096,666.52
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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.