Finding the Fourth Proportional to 99,794,515.20, 149,691,772.80 and 48,709,305.60
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Solution
The fourth proportional to 99,794,515.20, 149,691,772.80 and 48,709,305.60 is: 73,063,958.40
Step by Step Solution
- Step 1: Write the proportion equation
99,794,515.20 : 149,691,772.80 = 48,709,305.60 : x - Step 2: Convert to fraction form
99,794,515.20/149,691,772.80 = 48,709,305.60/x - Step 3: Cross multiply
99,794,515.20x = 149,691,772.80 × 48,709,305.60 - Step 4: Simplify right side
99,794,515.20x = 7,291,382,307,120,968 - Step 5: Solve for x
x = 7,291,382,307,120,968/99,794,515.20 - Step 6: Final answer
x = 73,063,958.40
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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.