Finding the Fourth Proportional to 91,403,680.99, 126,137,324.27 and 49,587,746.20
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Solution
The fourth proportional to 91,403,680.99, 126,137,324.27 and 49,587,746.20 is: 68,431,222.40
Step by Step Solution
- Step 1: Write the proportion equation
91,403,680.99 : 126,137,324.27 = 49,587,746.20 : x - Step 2: Convert to fraction form
91,403,680.99/126,137,324.27 = 49,587,746.20/x - Step 3: Cross multiply
91,403,680.99x = 126,137,324.27 × 49,587,746.20 - Step 4: Simplify right side
91,403,680.99x = 6,254,865,622,247,860 - Step 5: Solve for x
x = 6,254,865,622,247,860/91,403,680.99 - Step 6: Final answer
x = 68,431,222.40
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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.