Finding the Fourth Proportional to 19,724,467.70, 29,586,701.55 and 9,107,635.70
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Solution
The fourth proportional to 19,724,467.70, 29,586,701.55 and 9,107,635.70 is: 13,661,453.55
Step by Step Solution
- Step 1: Write the proportion equation
19,724,467.70 : 29,586,701.55 = 9,107,635.70 : x - Step 2: Convert to fraction form
19,724,467.70/29,586,701.55 = 9,107,635.70/x - Step 3: Cross multiply
19,724,467.70x = 29,586,701.55 × 9,107,635.70 - Step 4: Simplify right side
19,724,467.70x = 269,464,899,282,025.31 - Step 5: Solve for x
x = 269,464,899,282,025.31/19,724,467.70 - Step 6: Final answer
x = 13,661,453.55
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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.