Finding the Fourth Proportional to 207,782,439.40, 311,468,081.10 and 98,415,380.80
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Solution
The fourth proportional to 207,782,439.40, 311,468,081.10 and 98,415,380.80 is: 147,525,699.94
Step by Step Solution
- Step 1: Write the proportion equation
207,782,439.40 : 311,468,081.10 = 98,415,380.80 : x - Step 2: Convert to fraction form
207,782,439.40/311,468,081.10 = 98,415,380.80/x - Step 3: Cross multiply
207,782,439.40x = 311,468,081.10 × 98,415,380.80 - Step 4: Simplify right side
207,782,439.40x = 30,653,249,808,501,784 - Step 5: Solve for x
x = 30,653,249,808,501,784/207,782,439.40 - Step 6: Final answer
x = 147,525,699.94
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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.