Finding the Fourth Proportional to 81,653,653.80, 122,480,480.70 and 27,800,965.80
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Solution
The fourth proportional to 81,653,653.80, 122,480,480.70 and 27,800,965.80 is: 41,701,448.70
Step by Step Solution
- Step 1: Write the proportion equation
81,653,653.80 : 122,480,480.70 = 27,800,965.80 : x - Step 2: Convert to fraction form
81,653,653.80/122,480,480.70 = 27,800,965.80/x - Step 3: Cross multiply
81,653,653.80x = 122,480,480.70 × 27,800,965.80 - Step 4: Simplify right side
81,653,653.80x = 3,405,075,655,108,260 - Step 5: Solve for x
x = 3,405,075,655,108,260/81,653,653.80 - Step 6: Final answer
x = 41,701,448.70
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1.5x scale
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.