Finding the Fourth Proportional to 8,917,352.71, 12,306,249.66 and 8,508,745.18
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Solution
The fourth proportional to 8,917,352.71, 12,306,249.66 and 8,508,745.18 is: 11,742,357.38
Step by Step Solution
- Step 1: Write the proportion equation
8,917,352.71 : 12,306,249.66 = 8,508,745.18 : x - Step 2: Convert to fraction form
8,917,352.71/12,306,249.66 = 8,508,745.18/x - Step 3: Cross multiply
8,917,352.71x = 12,306,249.66 × 8,508,745.18 - Step 4: Simplify right side
8,917,352.71x = 104,710,742,416,870.41 - Step 5: Solve for x
x = 104,710,742,416,870.41/8,917,352.71 - Step 6: Final answer
x = 11,742,357.38
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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.