Finding the Fourth Proportional to 3,129,937.28, 4,688,793.18 and 2,157,129.30
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Solution
The fourth proportional to 3,129,937.28, 4,688,793.18 and 2,157,129.30 is: 3,231,481.10
Step by Step Solution
- Step 1: Write the proportion equation
3,129,937.28 : 4,688,793.18 = 2,157,129.30 : x - Step 2: Convert to fraction form
3,129,937.28/4,688,793.18 = 2,157,129.30/x - Step 3: Cross multiply
3,129,937.28x = 4,688,793.18 × 2,157,129.30 - Step 4: Simplify right side
3,129,937.28x = 10,114,333,150,218.17 - Step 5: Solve for x
x = 10,114,333,150,218.17/3,129,937.28 - Step 6: Final answer
x = 3,231,481.10
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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.