Finding the Fourth Proportional to 90,640,227.07, 125,083,531.29 and 49,387,119.58
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Solution
The fourth proportional to 90,640,227.07, 125,083,531.29 and 49,387,119.58 is: 68,154,234.79
Step by Step Solution
- Step 1: Write the proportion equation
90,640,227.07 : 125,083,531.29 = 49,387,119.58 : x - Step 2: Convert to fraction form
90,640,227.07/125,083,531.29 = 49,387,119.58/x - Step 3: Cross multiply
90,640,227.07x = 125,083,531.29 × 49,387,119.58 - Step 4: Simplify right side
90,640,227.07x = 6,177,515,317,307,902 - Step 5: Solve for x
x = 6,177,515,317,307,902/90,640,227.07 - Step 6: Final answer
x = 68,154,234.79
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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.