Finding the Fourth Proportional to 7,372,117.70, 11,058,176.55 and 6,112,405.70
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Solution
The fourth proportional to 7,372,117.70, 11,058,176.55 and 6,112,405.70 is: 9,168,608.55
Step by Step Solution
- Step 1: Write the proportion equation
7,372,117.70 : 11,058,176.55 = 6,112,405.70 : x - Step 2: Convert to fraction form
7,372,117.70/11,058,176.55 = 6,112,405.70/x - Step 3: Cross multiply
7,372,117.70x = 11,058,176.55 × 6,112,405.70 - Step 4: Simplify right side
7,372,117.70x = 67,592,061,375,826.34 - Step 5: Solve for x
x = 67,592,061,375,826.34/7,372,117.70 - Step 6: Final answer
x = 9,168,608.55
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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.