Finding the Fourth Proportional to 189,440,963.20, 284,037,028.80 and 74,356,163.20
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Solution
The fourth proportional to 189,440,963.20, 284,037,028.80 and 74,356,163.20 is: 111,485,411.14
Step by Step Solution
- Step 1: Write the proportion equation
189,440,963.20 : 284,037,028.80 = 74,356,163.20 : x - Step 2: Convert to fraction form
189,440,963.20/284,037,028.80 = 74,356,163.20/x - Step 3: Cross multiply
189,440,963.20x = 284,037,028.80 × 74,356,163.20 - Step 4: Simplify right side
189,440,963.20x = 21,119,903,668,295,900 - Step 5: Solve for x
x = 21,119,903,668,295,900/189,440,963.20 - Step 6: Final answer
x = 111,485,411.14
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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.