Finding the Fourth Proportional to 215,118,734.56, 296,888,951.28 and 122,313,148
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Solution
The fourth proportional to 215,118,734.56, 296,888,951.28 and 122,313,148 is: 168,806,414.34
Step by Step Solution
- Step 1: Write the proportion equation
215,118,734.56 : 296,888,951.28 = 122,313,148 : x - Step 2: Convert to fraction form
215,118,734.56/296,888,951.28 = 122,313,148/x - Step 3: Cross multiply
215,118,734.56x = 296,888,951.28 × 122,313,148 - Step 4: Simplify right side
215,118,734.56x = 36,313,422,237,475,424 - Step 5: Solve for x
x = 36,313,422,237,475,424/215,118,734.56 - Step 6: Final answer
x = 168,806,414.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.