Finding the Fourth Proportional to 189,430,366.80, 261,413,896.20 and 102,510,238.80
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Solution
The fourth proportional to 189,430,366.80, 261,413,896.20 and 102,510,238.80 is: 141,464,124.14
Step by Step Solution
- Step 1: Write the proportion equation
189,430,366.80 : 261,413,896.20 = 102,510,238.80 : x - Step 2: Convert to fraction form
189,430,366.80/261,413,896.20 = 102,510,238.80/x - Step 3: Cross multiply
189,430,366.80x = 261,413,896.20 × 102,510,238.80 - Step 4: Simplify right side
189,430,366.80x = 26,797,600,925,100,412 - Step 5: Solve for x
x = 26,797,600,925,100,412/189,430,366.80 - Step 6: Final answer
x = 141,464,124.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.