Finding the Fourth Proportional to 215,898,149.20, 323,847,223.80 and 106,740,167.80
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Solution
The fourth proportional to 215,898,149.20, 323,847,223.80 and 106,740,167.80 is: 160,110,251.70
Step by Step Solution
- Step 1: Write the proportion equation
215,898,149.20 : 323,847,223.80 = 106,740,167.80 : x - Step 2: Convert to fraction form
215,898,149.20/323,847,223.80 = 106,740,167.80/x - Step 3: Cross multiply
215,898,149.20x = 323,847,223.80 × 106,740,167.80 - Step 4: Simplify right side
215,898,149.20x = 34,567,507,009,976,152 - Step 5: Solve for x
x = 34,567,507,009,976,152/215,898,149.20 - Step 6: Final answer
x = 160,110,251.70
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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.