Finding the Fourth Proportional to 272,225,387.70, 408,338,081.55 and 272,225,387.70
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Solution
The fourth proportional to 272,225,387.70, 408,338,081.55 and 272,225,387.70 is: 408,338,081.55
Step by Step Solution
- Step 1: Write the proportion equation
272,225,387.70 : 408,338,081.55 = 272,225,387.70 : x - Step 2: Convert to fraction form
272,225,387.70/408,338,081.55 = 272,225,387.70/x - Step 3: Cross multiply
272,225,387.70x = 408,338,081.55 × 272,225,387.70 - Step 4: Simplify right side
272,225,387.70x = 111,159,992,562,622,960 - Step 5: Solve for x
x = 111,159,992,562,622,960/272,225,387.70 - Step 6: Final answer
x = 408,338,081.55
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1.5x scale
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.