Finding the Fourth Proportional to 84,207,965.63, 126,181,751.88 and 65,720,074.46
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Solution
The fourth proportional to 84,207,965.63, 126,181,751.88 and 65,720,074.46 is: 98,478,499.83
Step by Step Solution
- Step 1: Write the proportion equation
84,207,965.63 : 126,181,751.88 = 65,720,074.46 : x - Step 2: Convert to fraction form
84,207,965.63/126,181,751.88 = 65,720,074.46/x - Step 3: Cross multiply
84,207,965.63x = 126,181,751.88 × 65,720,074.46 - Step 4: Simplify right side
84,207,965.63x = 8,292,674,129,046,845 - Step 5: Solve for x
x = 8,292,674,129,046,845/84,207,965.63 - Step 6: Final answer
x = 98,478,499.83
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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.