Finding the Fourth Proportional to 481,215,207.89, 664,059,804.79 and 272,366,866.51
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Solution
The fourth proportional to 481,215,207.89, 664,059,804.79 and 272,366,866.51 is: 375,856,550.75
Step by Step Solution
- Step 1: Write the proportion equation
481,215,207.89 : 664,059,804.79 = 272,366,866.51 : x - Step 2: Convert to fraction form
481,215,207.89/664,059,804.79 = 272,366,866.51/x - Step 3: Cross multiply
481,215,207.89x = 664,059,804.79 × 272,366,866.51 - Step 4: Simplify right side
481,215,207.89x = 180,867,888,205,894,560 - Step 5: Solve for x
x = 180,867,888,205,894,560/481,215,207.89 - Step 6: Final answer
x = 375,856,550.75
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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.