Finding the Fourth Proportional to 71,853,496.80, 107,780,245.20 and 26,409,386.40
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Solution
The fourth proportional to 71,853,496.80, 107,780,245.20 and 26,409,386.40 is: 39,614,079.60
Step by Step Solution
- Step 1: Write the proportion equation
71,853,496.80 : 107,780,245.20 = 26,409,386.40 : x - Step 2: Convert to fraction form
71,853,496.80/107,780,245.20 = 26,409,386.40/x - Step 3: Cross multiply
71,853,496.80x = 107,780,245.20 × 26,409,386.40 - Step 4: Simplify right side
71,853,496.80x = 2,846,410,141,773,545 - Step 5: Solve for x
x = 2,846,410,141,773,545/71,853,496.80 - Step 6: Final answer
x = 39,614,079.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.