Finding the Fourth Proportional to 121,313,836.80, 170,141,702.40 and 121,313,836.80
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Solution
The fourth proportional to 121,313,836.80, 170,141,702.40 and 121,313,836.80 is: 170,141,702.40
Step by Step Solution
- Step 1: Write the proportion equation
121,313,836.80 : 170,141,702.40 = 121,313,836.80 : x - Step 2: Convert to fraction form
121,313,836.80/170,141,702.40 = 121,313,836.80/x - Step 3: Cross multiply
121,313,836.80x = 170,141,702.40 × 121,313,836.80 - Step 4: Simplify right side
121,313,836.80x = 20,640,542,717,827,768 - Step 5: Solve for x
x = 20,640,542,717,827,768/121,313,836.80 - Step 6: Final answer
x = 170,141,702.40
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1.5x scale
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.