Finding the Fourth Proportional to 131,867,999.20, 197,801,998.80 and 36,129,887.20
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Solution
The fourth proportional to 131,867,999.20, 197,801,998.80 and 36,129,887.20 is: 54,194,830.80
Step by Step Solution
- Step 1: Write the proportion equation
131,867,999.20 : 197,801,998.80 = 36,129,887.20 : x - Step 2: Convert to fraction form
131,867,999.20/197,801,998.80 = 36,129,887.20/x - Step 3: Cross multiply
131,867,999.20x = 197,801,998.80 × 36,129,887.20 - Step 4: Simplify right side
131,867,999.20x = 7,146,563,904,578,536 - Step 5: Solve for x
x = 7,146,563,904,578,536/131,867,999.20 - Step 6: Final answer
x = 54,194,830.80
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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.