Finding the Fourth Proportional to 189,626,139.15, 261,705,309.26 and 107,125,238.31
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Solution
The fourth proportional to 189,626,139.15, 261,705,309.26 and 107,125,238.31 is: 147,844,826.39
Step by Step Solution
- Step 1: Write the proportion equation
189,626,139.15 : 261,705,309.26 = 107,125,238.31 : x - Step 2: Convert to fraction form
189,626,139.15/261,705,309.26 = 107,125,238.31/x - Step 3: Cross multiply
189,626,139.15x = 261,705,309.26 × 107,125,238.31 - Step 4: Simplify right side
189,626,139.15x = 28,035,243,620,934,124 - Step 5: Solve for x
x = 28,035,243,620,934,124/189,626,139.15 - Step 6: Final answer
x = 147,844,826.39
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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.