Finding the Fourth Proportional to 135,296,769.20, 186,660,738.96 and 76,558,809.20
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Solution
The fourth proportional to 135,296,769.20, 186,660,738.96 and 76,558,809.20 is: 105,623,541.37
Step by Step Solution
- Step 1: Write the proportion equation
135,296,769.20 : 186,660,738.96 = 76,558,809.20 : x - Step 2: Convert to fraction form
135,296,769.20/186,660,738.96 = 76,558,809.20/x - Step 3: Cross multiply
135,296,769.20x = 186,660,738.96 × 76,558,809.20 - Step 4: Simplify right side
135,296,769.20x = 14,290,523,899,169,648 - Step 5: Solve for x
x = 14,290,523,899,169,648/135,296,769.20 - Step 6: Final answer
x = 105,623,541.37
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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.