Finding the Fourth Proportional to 189,429,745.92, 284,029,557.12 and 74,276,325.12
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Solution
The fourth proportional to 189,429,745.92, 284,029,557.12 and 74,276,325.12 is: 111,369,371.40
Step by Step Solution
- Step 1: Write the proportion equation
189,429,745.92 : 284,029,557.12 = 74,276,325.12 : x - Step 2: Convert to fraction form
189,429,745.92/284,029,557.12 = 74,276,325.12/x - Step 3: Cross multiply
189,429,745.92x = 284,029,557.12 × 74,276,325.12 - Step 4: Simplify right side
189,429,745.92x = 21,096,671,728,334,732 - Step 5: Solve for x
x = 21,096,671,728,334,732/189,429,745.92 - Step 6: Final answer
x = 111,369,371.40
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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.