Finding the Fourth Proportional to 440,287,990.73, 660,432,108.84 and 129,395,589.83
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Solution
The fourth proportional to 440,287,990.73, 660,432,108.84 and 129,395,589.83 is: 194,093,420.82
Step by Step Solution
- Step 1: Write the proportion equation
440,287,990.73 : 660,432,108.84 = 129,395,589.83 : x - Step 2: Convert to fraction form
440,287,990.73/660,432,108.84 = 129,395,589.83/x - Step 3: Cross multiply
440,287,990.73x = 660,432,108.84 × 129,395,589.83 - Step 4: Simplify right side
440,287,990.73x = 85,457,002,266,022,560 - Step 5: Solve for x
x = 85,457,002,266,022,560/440,287,990.73 - Step 6: Final answer
x = 194,093,420.82
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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.