Finding the Fourth Proportional to 8,917,352.58, 12,306,249.50 and 8,508,745.05
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Solution
The fourth proportional to 8,917,352.58, 12,306,249.50 and 8,508,745.05 is: 11,742,357.21
Step by Step Solution
- Step 1: Write the proportion equation
8,917,352.58 : 12,306,249.50 = 8,508,745.05 : x - Step 2: Convert to fraction form
8,917,352.58/12,306,249.50 = 8,508,745.05/x - Step 3: Cross multiply
8,917,352.58x = 12,306,249.50 × 8,508,745.05 - Step 4: Simplify right side
8,917,352.58x = 104,710,739,428,497.81 - Step 5: Solve for x
x = 104,710,739,428,497.81/8,917,352.58 - Step 6: Final answer
x = 11,742,357.21
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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.