Finding the Fourth Proportional to 13,311,357.92, 18,369,613.86 and 7,199,771.84
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Solution
The fourth proportional to 13,311,357.92, 18,369,613.86 and 7,199,771.84 is: 9,935,652.65
Step by Step Solution
- Step 1: Write the proportion equation
13,311,357.92 : 18,369,613.86 = 7,199,771.84 : x - Step 2: Convert to fraction form
13,311,357.92/18,369,613.86 = 7,199,771.84/x - Step 3: Cross multiply
13,311,357.92x = 18,369,613.86 × 7,199,771.84 - Step 4: Simplify right side
13,311,357.92x = 132,257,028,580,901.70 - Step 5: Solve for x
x = 132,257,028,580,901.70/13,311,357.92 - Step 6: Final answer
x = 9,935,652.65
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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.