Finding the Fourth Proportional to 76,651,446.80, 114,977,170.20 and 38,318,877.20
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Solution
The fourth proportional to 76,651,446.80, 114,977,170.20 and 38,318,877.20 is: 57,478,315.80
Step by Step Solution
- Step 1: Write the proportion equation
76,651,446.80 : 114,977,170.20 = 38,318,877.20 : x - Step 2: Convert to fraction form
76,651,446.80/114,977,170.20 = 38,318,877.20/x - Step 3: Cross multiply
76,651,446.80x = 114,977,170.20 × 38,318,877.20 - Step 4: Simplify right side
76,651,446.80x = 4,405,796,065,697,300 - Step 5: Solve for x
x = 4,405,796,065,697,300/76,651,446.80 - Step 6: Final answer
x = 57,478,315.80
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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.