Finding the Fourth Proportional to 85,983,491.77, 128,971,634.99 and 27,689,879.44
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Solution
The fourth proportional to 85,983,491.77, 128,971,634.99 and 27,689,879.44 is: 41,533,658.97
Step by Step Solution
- Step 1: Write the proportion equation
85,983,491.77 : 128,971,634.99 = 27,689,879.44 : x - Step 2: Convert to fraction form
85,983,491.77/128,971,634.99 = 27,689,879.44/x - Step 3: Cross multiply
85,983,491.77x = 128,971,634.99 × 27,689,879.44 - Step 4: Simplify right side
85,983,491.77x = 3,571,209,024,075,551 - Step 5: Solve for x
x = 3,571,209,024,075,551/85,983,491.77 - Step 6: Final answer
x = 41,533,658.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.