Finding the Fourth Proportional to 38,241,866.81, 57,362,728.53 and 11,982,712.94
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Solution
The fourth proportional to 38,241,866.81, 57,362,728.53 and 11,982,712.94 is: 17,974,046.95
Step by Step Solution
- Step 1: Write the proportion equation
38,241,866.81 : 57,362,728.53 = 11,982,712.94 : x - Step 2: Convert to fraction form
38,241,866.81/57,362,728.53 = 11,982,712.94/x - Step 3: Cross multiply
38,241,866.81x = 57,362,728.53 × 11,982,712.94 - Step 4: Simplify right side
38,241,866.81x = 687,361,109,403,370 - Step 5: Solve for x
x = 687,361,109,403,370/38,241,866.81 - Step 6: Final answer
x = 17,974,046.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.