Finding the Fourth Proportional to 21,376,649.48, 29,498,985.97 and 11,586,883.48
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Solution
The fourth proportional to 21,376,649.48, 29,498,985.97 and 11,586,883.48 is: 15,989,470.82
Step by Step Solution
- Step 1: Write the proportion equation
21,376,649.48 : 29,498,985.97 = 11,586,883.48 : x - Step 2: Convert to fraction form
21,376,649.48/29,498,985.97 = 11,586,883.48/x - Step 3: Cross multiply
21,376,649.48x = 29,498,985.97 × 11,586,883.48 - Step 4: Simplify right side
21,376,649.48x = 341,801,313,055,732.81 - Step 5: Solve for x
x = 341,801,313,055,732.81/21,376,649.48 - Step 6: Final answer
x = 15,989,470.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.