Finding the Fourth Proportional to 11,078,764.80, 15,291,246.32 and 6,496,562.40
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Solution
The fourth proportional to 11,078,764.80, 15,291,246.32 and 6,496,562.40 is: 8,966,751.95
Step by Step Solution
- Step 1: Write the proportion equation
11,078,764.80 : 15,291,246.32 = 6,496,562.40 : x - Step 2: Convert to fraction form
11,078,764.80/15,291,246.32 = 6,496,562.40/x - Step 3: Cross multiply
11,078,764.80x = 15,291,246.32 × 6,496,562.40 - Step 4: Simplify right side
11,078,764.80x = 99,340,535,891,650.38 - Step 5: Solve for x
x = 99,340,535,891,650.38/11,078,764.80 - Step 6: Final answer
x = 8,966,751.95
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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.