Finding the Fourth Proportional to 74,507,212.72, 102,761,615.28 and 48,410,208.28
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Solution
The fourth proportional to 74,507,212.72, 102,761,615.28 and 48,410,208.28 is: 66,768,182.80
Step by Step Solution
- Step 1: Write the proportion equation
74,507,212.72 : 102,761,615.28 = 48,410,208.28 : x - Step 2: Convert to fraction form
74,507,212.72/102,761,615.28 = 48,410,208.28/x - Step 3: Cross multiply
74,507,212.72x = 102,761,615.28 × 48,410,208.28 - Step 4: Simplify right side
74,507,212.72x = 4,974,711,198,894,031 - Step 5: Solve for x
x = 4,974,711,198,894,031/74,507,212.72 - Step 6: Final answer
x = 66,768,182.80
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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.