Finding the Fourth Proportional to 121,313,837.80, 170,141,703.80 and 121,313,837.80
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Solution
The fourth proportional to 121,313,837.80, 170,141,703.80 and 121,313,837.80 is: 170,141,703.80
Step by Step Solution
- Step 1: Write the proportion equation
121,313,837.80 : 170,141,703.80 = 121,313,837.80 : x - Step 2: Convert to fraction form
121,313,837.80/170,141,703.80 = 121,313,837.80/x - Step 3: Cross multiply
121,313,837.80x = 170,141,703.80 × 121,313,837.80 - Step 4: Simplify right side
121,313,837.80x = 20,640,543,057,808,844 - Step 5: Solve for x
x = 20,640,543,057,808,844/121,313,837.80 - Step 6: Final answer
x = 170,141,703.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.