Finding the Fourth Proportional to 65,381,292.19, 90,218,322.21 and 37,502,561.63
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Solution
The fourth proportional to 65,381,292.19, 90,218,322.21 and 37,502,561.63 is: 51,749,025.99
Step by Step Solution
- Step 1: Write the proportion equation
65,381,292.19 : 90,218,322.21 = 37,502,561.63 : x - Step 2: Convert to fraction form
65,381,292.19/90,218,322.21 = 37,502,561.63/x - Step 3: Cross multiply
65,381,292.19x = 90,218,322.21 × 37,502,561.63 - Step 4: Simplify right side
65,381,292.19x = 3,383,418,188,835,723 - Step 5: Solve for x
x = 3,383,418,188,835,723/65,381,292.19 - Step 6: Final answer
x = 51,749,025.99
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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.