Finding the Fourth Proportional to 189,626,152.16, 261,705,327.18 and 107,125,251.32
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Solution
The fourth proportional to 189,626,152.16, 261,705,327.18 and 107,125,251.32 is: 147,844,844.32
Step by Step Solution
- Step 1: Write the proportion equation
189,626,152.16 : 261,705,327.18 = 107,125,251.32 : x - Step 2: Convert to fraction form
189,626,152.16/261,705,327.18 = 107,125,251.32/x - Step 3: Cross multiply
189,626,152.16x = 261,705,327.18 × 107,125,251.32 - Step 4: Simplify right side
189,626,152.16x = 28,035,248,945,940,324 - Step 5: Solve for x
x = 28,035,248,945,940,324/189,626,152.16 - Step 6: Final answer
x = 147,844,844.32
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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.