Finding the Fourth Proportional to 99,794,564.20, 149,691,846.30 and 48,709,354.60
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Solution
The fourth proportional to 99,794,564.20, 149,691,846.30 and 48,709,354.60 is: 73,064,031.90
Step by Step Solution
- Step 1: Write the proportion equation
99,794,564.20 : 149,691,846.30 = 48,709,354.60 : x - Step 2: Convert to fraction form
99,794,564.20/149,691,846.30 = 48,709,354.60/x - Step 3: Cross multiply
99,794,564.20x = 149,691,846.30 × 48,709,354.60 - Step 4: Simplify right side
99,794,564.20x = 7,291,393,222,155,399 - Step 5: Solve for x
x = 7,291,393,222,155,399/99,794,564.20 - Step 6: Final answer
x = 73,064,031.90
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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.