Finding the Fourth Proportional to 121,609,680.84, 167,821,521.44 and 65,855,197.46
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Solution
The fourth proportional to 121,609,680.84, 167,821,521.44 and 65,855,197.46 is: 90,880,260.15
Step by Step Solution
- Step 1: Write the proportion equation
121,609,680.84 : 167,821,521.44 = 65,855,197.46 : x - Step 2: Convert to fraction form
121,609,680.84/167,821,521.44 = 65,855,197.46/x - Step 3: Cross multiply
121,609,680.84x = 167,821,521.44 × 65,855,197.46 - Step 4: Simplify right side
121,609,680.84x = 11,051,919,431,300,440 - Step 5: Solve for x
x = 11,051,919,431,300,440/121,609,680.84 - Step 6: Final answer
x = 90,880,260.15
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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.