Finding the Fourth Proportional to 10,521,835.67, 15,783,365.84 and 2,949,391.91
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Solution
The fourth proportional to 10,521,835.67, 15,783,365.84 and 2,949,391.91 is: 4,424,259.50
Step by Step Solution
- Step 1: Write the proportion equation
10,521,835.67 : 15,783,365.84 = 2,949,391.91 : x - Step 2: Convert to fraction form
10,521,835.67/15,783,365.84 = 2,949,391.91/x - Step 3: Cross multiply
10,521,835.67x = 15,783,365.84 × 2,949,391.91 - Step 4: Simplify right side
10,521,835.67x = 46,551,331,449,523 - Step 5: Solve for x
x = 46,551,331,449,523/10,521,835.67 - Step 6: Final answer
x = 4,424,259.50
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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.