Finding the Fourth Proportional to 103,935,771.62, 143,431,409.74 and 56,893,113.42
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Solution
The fourth proportional to 103,935,771.62, 143,431,409.74 and 56,893,113.42 is: 78,512,521.09
Step by Step Solution
- Step 1: Write the proportion equation
103,935,771.62 : 143,431,409.74 = 56,893,113.42 : x - Step 2: Convert to fraction form
103,935,771.62/143,431,409.74 = 56,893,113.42/x - Step 3: Cross multiply
103,935,771.62x = 143,431,409.74 × 56,893,113.42 - Step 4: Simplify right side
103,935,771.62x = 8,160,259,461,611,156 - Step 5: Solve for x
x = 8,160,259,461,611,156/103,935,771.62 - Step 6: Final answer
x = 78,512,521.09
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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.