Finding the Fourth Proportional to 121,430,824.20, 167,574,757.91 and 66,426,680.70
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Solution
The fourth proportional to 121,430,824.20, 167,574,757.91 and 66,426,680.70 is: 91,668,939.99
Step by Step Solution
- Step 1: Write the proportion equation
121,430,824.20 : 167,574,757.91 = 66,426,680.70 : x - Step 2: Convert to fraction form
121,430,824.20/167,574,757.91 = 66,426,680.70/x - Step 3: Cross multiply
121,430,824.20x = 167,574,757.91 × 66,426,680.70 - Step 4: Simplify right side
121,430,824.20x = 11,131,434,936,735,236 - Step 5: Solve for x
x = 11,131,434,936,735,236/121,430,824.20 - Step 6: Final answer
x = 91,668,939.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.