Finding the Fourth Proportional to 7,381,502.70, 11,072,254.05 and 7,062,638.10
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Solution
The fourth proportional to 7,381,502.70, 11,072,254.05 and 7,062,638.10 is: 10,593,957.15
Step by Step Solution
- Step 1: Write the proportion equation
7,381,502.70 : 11,072,254.05 = 7,062,638.10 : x - Step 2: Convert to fraction form
7,381,502.70/11,072,254.05 = 7,062,638.10/x - Step 3: Cross multiply
7,381,502.70x = 11,072,254.05 × 7,062,638.10 - Step 4: Simplify right side
7,381,502.70x = 78,199,323,306,409.31 - Step 5: Solve for x
x = 78,199,323,306,409.31/7,381,502.70 - Step 6: Final answer
x = 10,593,957.15
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1.5x scale
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.