Finding the Fourth Proportional to 81,598,830.80, 122,398,246.20 and 27,746,142.80
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Solution
The fourth proportional to 81,598,830.80, 122,398,246.20 and 27,746,142.80 is: 41,619,214.20
Step by Step Solution
- Step 1: Write the proportion equation
81,598,830.80 : 122,398,246.20 = 27,746,142.80 : x - Step 2: Convert to fraction form
81,598,830.80/122,398,246.20 = 27,746,142.80/x - Step 3: Cross multiply
81,598,830.80x = 122,398,246.20 × 27,746,142.80 - Step 4: Simplify right side
81,598,830.80x = 3,396,079,217,534,757.50 - Step 5: Solve for x
x = 3,396,079,217,534,757.50/81,598,830.80 - Step 6: Final answer
x = 41,619,214.20
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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.