Finding the Fourth Proportional to 308,231,576.48, 425,378,685.84 and 170,876,312.48
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Solution
The fourth proportional to 308,231,576.48, 425,378,685.84 and 170,876,312.48 is: 235,819,905.52
Step by Step Solution
- Step 1: Write the proportion equation
308,231,576.48 : 425,378,685.84 = 170,876,312.48 : x - Step 2: Convert to fraction form
308,231,576.48/425,378,685.84 = 170,876,312.48/x - Step 3: Cross multiply
308,231,576.48x = 425,378,685.84 × 170,876,312.48 - Step 4: Simplify right side
308,231,576.48x = 72,687,141,243,927,584 - Step 5: Solve for x
x = 72,687,141,243,927,584/308,231,576.48 - Step 6: Final answer
x = 235,819,905.52
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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.