Finding the Fourth Proportional to 7,777,609.43, 10,738,156.74 and 6,960,408.19
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Solution
The fourth proportional to 7,777,609.43, 10,738,156.74 and 6,960,408.19 is: 9,609,887.82
Step by Step Solution
- Step 1: Write the proportion equation
7,777,609.43 : 10,738,156.74 = 6,960,408.19 : x - Step 2: Convert to fraction form
7,777,609.43/10,738,156.74 = 6,960,408.19/x - Step 3: Cross multiply
7,777,609.43x = 10,738,156.74 × 6,960,408.19 - Step 4: Simplify right side
7,777,609.43x = 74,741,954,118,599.70 - Step 5: Solve for x
x = 74,741,954,118,599.70/7,777,609.43 - Step 6: Final answer
x = 9,609,887.82
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1.5x scale
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.