Finding the Fourth Proportional to 13,189,272.93, 18,202,206.33 and 8,298,687.11
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Solution
The fourth proportional to 13,189,272.93, 18,202,206.33 and 8,298,687.11 is: 11,452,823.50
Step by Step Solution
- Step 1: Write the proportion equation
13,189,272.93 : 18,202,206.33 = 8,298,687.11 : x - Step 2: Convert to fraction form
13,189,272.93/18,202,206.33 = 8,298,687.11/x - Step 3: Cross multiply
13,189,272.93x = 18,202,206.33 × 8,298,687.11 - Step 4: Simplify right side
13,189,272.93x = 151,054,414,953,320.38 - Step 5: Solve for x
x = 151,054,414,953,320.38/13,189,272.93 - Step 6: Final answer
x = 11,452,823.50
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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.