Finding the Fourth Proportional to 85,982,726.49, 118,650,787.79 and 47,351,558.49
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Solution
The fourth proportional to 85,982,726.49, 118,650,787.79 and 47,351,558.49 is: 65,342,190.78
Step by Step Solution
- Step 1: Write the proportion equation
85,982,726.49 : 118,650,787.79 = 47,351,558.49 : x - Step 2: Convert to fraction form
85,982,726.49/118,650,787.79 = 47,351,558.49/x - Step 3: Cross multiply
85,982,726.49x = 118,650,787.79 × 47,351,558.49 - Step 4: Simplify right side
85,982,726.49x = 5,618,299,717,686,005 - Step 5: Solve for x
x = 5,618,299,717,686,005/85,982,726.49 - Step 6: Final answer
x = 65,342,190.78
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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.