Finding the Fourth Proportional to 18,812,370.67, 28,215,535.51 and 5,162,329.24
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Solution
The fourth proportional to 18,812,370.67, 28,215,535.51 and 5,162,329.24 is: 7,742,664.99
Step by Step Solution
- Step 1: Write the proportion equation
18,812,370.67 : 28,215,535.51 = 5,162,329.24 : x - Step 2: Convert to fraction form
18,812,370.67/28,215,535.51 = 5,162,329.24/x - Step 3: Cross multiply
18,812,370.67x = 28,215,535.51 × 5,162,329.24 - Step 4: Simplify right side
18,812,370.67x = 145,657,883,818,642 - Step 5: Solve for x
x = 145,657,883,818,642/18,812,370.67 - Step 6: Final answer
x = 7,742,664.99
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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.