Finding the Fourth Proportional to 49,982,473.20, 74,973,709.80 and 47,148,121.20
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Solution
The fourth proportional to 49,982,473.20, 74,973,709.80 and 47,148,121.20 is: 70,722,181.80
Step by Step Solution
- Step 1: Write the proportion equation
49,982,473.20 : 74,973,709.80 = 47,148,121.20 : x - Step 2: Convert to fraction form
49,982,473.20/74,973,709.80 = 47,148,121.20/x - Step 3: Cross multiply
49,982,473.20x = 74,973,709.80 × 47,148,121.20 - Step 4: Simplify right side
49,982,473.20x = 3,534,869,556,464,028 - Step 5: Solve for x
x = 3,534,869,556,464,028/49,982,473.20 - Step 6: Final answer
x = 70,722,181.80
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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.