Finding the Fourth Proportional to 81,654,331.80, 122,481,497.70 and 27,801,643.80
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Solution
The fourth proportional to 81,654,331.80, 122,481,497.70 and 27,801,643.80 is: 41,702,465.70
Step by Step Solution
- Step 1: Write the proportion equation
81,654,331.80 : 122,481,497.70 = 27,801,643.80 : x - Step 2: Convert to fraction form
81,654,331.80/122,481,497.70 = 27,801,643.80/x - Step 3: Cross multiply
81,654,331.80x = 122,481,497.70 × 27,801,643.80 - Step 4: Simplify right side
81,654,331.80x = 3,405,186,971,145,919.50 - Step 5: Solve for x
x = 3,405,186,971,145,919.50/81,654,331.80 - Step 6: Final answer
x = 41,702,465.70
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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.