Finding the Fourth Proportional to 81,954,470.40, 122,937,926.40 and 24,442,252.80
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Solution
The fourth proportional to 81,954,470.40, 122,937,926.40 and 24,442,252.80 is: 36,665,234.50
Step by Step Solution
- Step 1: Write the proportion equation
81,954,470.40 : 122,937,926.40 = 24,442,252.80 : x - Step 2: Convert to fraction form
81,954,470.40/122,937,926.40 = 24,442,252.80/x - Step 3: Cross multiply
81,954,470.40x = 122,937,926.40 × 24,442,252.80 - Step 4: Simplify right side
81,954,470.40x = 3,004,879,875,776,594 - Step 5: Solve for x
x = 3,004,879,875,776,594/81,954,470.40 - Step 6: Final answer
x = 36,665,234.50
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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.