Finding the Fourth Proportional to 19,764,490.86, 29,649,128.22 and 6,982,379.82
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Solution
The fourth proportional to 19,764,490.86, 29,649,128.22 and 6,982,379.82 is: 10,474,414.75
Step by Step Solution
- Step 1: Write the proportion equation
19,764,490.86 : 29,649,128.22 = 6,982,379.82 : x - Step 2: Convert to fraction form
19,764,490.86/29,649,128.22 = 6,982,379.82/x - Step 3: Cross multiply
19,764,490.86x = 29,649,128.22 × 6,982,379.82 - Step 4: Simplify right side
19,764,490.86x = 207,021,474,563,920.53 - Step 5: Solve for x
x = 207,021,474,563,920.53/19,764,490.86 - Step 6: Final answer
x = 10,474,414.75
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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.