Finding the Fourth Proportional to 49,910,134.20, 74,865,201.30 and 47,926,087.80
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Solution
The fourth proportional to 49,910,134.20, 74,865,201.30 and 47,926,087.80 is: 71,889,131.70
Step by Step Solution
- Step 1: Write the proportion equation
49,910,134.20 : 74,865,201.30 = 47,926,087.80 : x - Step 2: Convert to fraction form
49,910,134.20/74,865,201.30 = 47,926,087.80/x - Step 3: Cross multiply
49,910,134.20x = 74,865,201.30 × 47,926,087.80 - Step 4: Simplify right side
49,910,134.20x = 3,587,996,210,668,474 - Step 5: Solve for x
x = 3,587,996,210,668,474/49,910,134.20 - Step 6: Final answer
x = 71,889,131.70
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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.