Finding the Fourth Proportional to 207,941,572.77, 311,960,194.99 and 69,785,513.20
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Solution
The fourth proportional to 207,941,572.77, 311,960,194.99 and 69,785,513.20 is: 104,694,323.58
Step by Step Solution
- Step 1: Write the proportion equation
207,941,572.77 : 311,960,194.99 = 69,785,513.20 : x - Step 2: Convert to fraction form
207,941,572.77/311,960,194.99 = 69,785,513.20/x - Step 3: Cross multiply
207,941,572.77x = 311,960,194.99 × 69,785,513.20 - Step 4: Simplify right side
207,941,572.77x = 21,770,302,305,349,220 - Step 5: Solve for x
x = 21,770,302,305,349,220/207,941,572.77 - Step 6: Final answer
x = 104,694,323.58
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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.