Finding the Fourth Proportional to 147,186,276.87, 203,118,424.27 and 81,109,139.84
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Solution
The fourth proportional to 147,186,276.87, 203,118,424.27 and 81,109,139.84 is: 111,931,363.63
Step by Step Solution
- Step 1: Write the proportion equation
147,186,276.87 : 203,118,424.27 = 81,109,139.84 : x - Step 2: Convert to fraction form
147,186,276.87/203,118,424.27 = 81,109,139.84/x - Step 3: Cross multiply
147,186,276.87x = 203,118,424.27 × 81,109,139.84 - Step 4: Simplify right side
147,186,276.87x = 16,474,760,678,195,882 - Step 5: Solve for x
x = 16,474,760,678,195,882/147,186,276.87 - Step 6: Final answer
x = 111,931,363.63
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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.