Finding the Fourth Proportional to 276,905,710.99, 382,247,542.21 and 172,535,348.70
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Solution
The fourth proportional to 276,905,710.99, 382,247,542.21 and 172,535,348.70 is: 238,172,093.84
Step by Step Solution
- Step 1: Write the proportion equation
276,905,710.99 : 382,247,542.21 = 172,535,348.70 : x - Step 2: Convert to fraction form
276,905,710.99/382,247,542.21 = 172,535,348.70/x - Step 3: Cross multiply
276,905,710.99x = 382,247,542.21 × 172,535,348.70 - Step 4: Simplify right side
276,905,710.99x = 65,951,212,984,057,632 - Step 5: Solve for x
x = 65,951,212,984,057,632/276,905,710.99 - Step 6: Final answer
x = 238,172,093.84
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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.