Finding the Fourth Proportional to 13,189,272.91, 18,202,206.35 and 8,298,687.11
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Solution
The fourth proportional to 13,189,272.91, 18,202,206.35 and 8,298,687.11 is: 11,452,823.53
Step by Step Solution
- Step 1: Write the proportion equation
13,189,272.91 : 18,202,206.35 = 8,298,687.11 : x - Step 2: Convert to fraction form
13,189,272.91/18,202,206.35 = 8,298,687.11/x - Step 3: Cross multiply
13,189,272.91x = 18,202,206.35 × 8,298,687.11 - Step 4: Simplify right side
13,189,272.91x = 151,054,415,140,040.84 - Step 5: Solve for x
x = 151,054,415,140,040.84/13,189,272.91 - Step 6: Final answer
x = 11,452,823.53
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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.