Finding the Fourth Proportional to 442,904,336.70, 664,353,005.85 and 115,379,216.70
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Solution
The fourth proportional to 442,904,336.70, 664,353,005.85 and 115,379,216.70 is: 173,067,913.49
Step by Step Solution
- Step 1: Write the proportion equation
442,904,336.70 : 664,353,005.85 = 115,379,216.70 : x - Step 2: Convert to fraction form
442,904,336.70/664,353,005.85 = 115,379,216.70/x - Step 3: Cross multiply
442,904,336.70x = 664,353,005.85 × 115,379,216.70 - Step 4: Simplify right side
442,904,336.70x = 76,652,529,427,263,520 - Step 5: Solve for x
x = 76,652,529,427,263,520/442,904,336.70 - Step 6: Final answer
x = 173,067,913.49
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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.