Finding the Fourth Proportional to 1,138,701,246.40, 1,704,650,647.20 and 678,402,481.60
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Solution
The fourth proportional to 1,138,701,246.40, 1,704,650,647.20 and 678,402,481.60 is: 1,015,577,380.79
Step by Step Solution
- Step 1: Write the proportion equation
1,138,701,246.40 : 1,704,650,647.20 = 678,402,481.60 : x - Step 2: Convert to fraction form
1,138,701,246.40/1,704,650,647.20 = 678,402,481.60/x - Step 3: Cross multiply
1,138,701,246.40x = 1,704,650,647.20 × 678,402,481.60 - Step 4: Simplify right side
1,138,701,246.40x = 1,156,439,229,321,526,272 - Step 5: Solve for x
x = 1,156,439,229,321,526,272/1,138,701,246.40 - Step 6: Final answer
x = 1,015,577,380.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.