Finding the Fourth Proportional to 746,018,813.96, 1,029,509,163.92 and 406,934,678.92
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Solution
The fourth proportional to 746,018,813.96, 1,029,509,163.92 and 406,934,678.92 is: 561,571,602.79
Step by Step Solution
- Step 1: Write the proportion equation
746,018,813.96 : 1,029,509,163.92 = 406,934,678.92 : x - Step 2: Convert to fraction form
746,018,813.96/1,029,509,163.92 = 406,934,678.92/x - Step 3: Cross multiply
746,018,813.96x = 1,029,509,163.92 × 406,934,678.92 - Step 4: Simplify right side
746,018,813.96x = 418,942,981,064,982,848 - Step 5: Solve for x
x = 418,942,981,064,982,848/746,018,813.96 - Step 6: Final answer
x = 561,571,602.79
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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.