Finding the Fourth Proportional to 8,119,761.48, 11,205,270.59 and 4,448,817.12
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Solution
The fourth proportional to 8,119,761.48, 11,205,270.59 and 4,448,817.12 is: 6,139,367.49
Step by Step Solution
- Step 1: Write the proportion equation
8,119,761.48 : 11,205,270.59 = 4,448,817.12 : x - Step 2: Convert to fraction form
8,119,761.48/11,205,270.59 = 4,448,817.12/x - Step 3: Cross multiply
8,119,761.48x = 11,205,270.59 × 4,448,817.12 - Step 4: Simplify right side
8,119,761.48x = 49,850,199,635,024.50 - Step 5: Solve for x
x = 49,850,199,635,024.50/8,119,761.48 - Step 6: Final answer
x = 6,139,367.49
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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.