Finding the Fourth Proportional to 34,159,102.24, 47,134,905.60 and 20,405,146.72
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Solution
The fourth proportional to 34,159,102.24, 47,134,905.60 and 20,405,146.72 is: 28,156,321.49
Step by Step Solution
- Step 1: Write the proportion equation
34,159,102.24 : 47,134,905.60 = 20,405,146.72 : x - Step 2: Convert to fraction form
34,159,102.24/47,134,905.60 = 20,405,146.72/x - Step 3: Cross multiply
34,159,102.24x = 47,134,905.60 × 20,405,146.72 - Step 4: Simplify right side
34,159,102.24x = 961,794,664,401,349.62 - Step 5: Solve for x
x = 961,794,664,401,349.62/34,159,102.24 - Step 6: Final answer
x = 28,156,321.49
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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.