Finding the Fourth Proportional to 129,952,398.20, 194,928,597.30 and 53,330,415.80
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Solution
The fourth proportional to 129,952,398.20, 194,928,597.30 and 53,330,415.80 is: 79,995,623.70
Step by Step Solution
- Step 1: Write the proportion equation
129,952,398.20 : 194,928,597.30 = 53,330,415.80 : x - Step 2: Convert to fraction form
129,952,398.20/194,928,597.30 = 53,330,415.80/x - Step 3: Cross multiply
129,952,398.20x = 194,928,597.30 × 53,330,415.80 - Step 4: Simplify right side
129,952,398.20x = 10,395,623,145,319,758 - Step 5: Solve for x
x = 10,395,623,145,319,758/129,952,398.20 - Step 6: Final answer
x = 79,995,623.70
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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.