Finding the Fourth Proportional to 323,972,221.88, 485,979,881.62 and 113,857,495.76
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Solution
The fourth proportional to 323,972,221.88, 485,979,881.62 and 113,857,495.76 is: 170,793,816.80
Step by Step Solution
- Step 1: Write the proportion equation
323,972,221.88 : 485,979,881.62 = 113,857,495.76 : x - Step 2: Convert to fraction form
323,972,221.88/485,979,881.62 = 113,857,495.76/x - Step 3: Cross multiply
323,972,221.88x = 485,979,881.62 × 113,857,495.76 - Step 4: Simplify right side
323,972,221.88x = 55,332,452,310,994,456 - Step 5: Solve for x
x = 55,332,452,310,994,456/323,972,221.88 - Step 6: Final answer
x = 170,793,816.80
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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.