Finding the Fourth Proportional to 236,173,107.20, 354,259,660.80 and 209,299,251.20
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Solution
The fourth proportional to 236,173,107.20, 354,259,660.80 and 209,299,251.20 is: 313,948,876.80
Step by Step Solution
- Step 1: Write the proportion equation
236,173,107.20 : 354,259,660.80 = 209,299,251.20 : x - Step 2: Convert to fraction form
236,173,107.20/354,259,660.80 = 209,299,251.20/x - Step 3: Cross multiply
236,173,107.20x = 354,259,660.80 × 209,299,251.20 - Step 4: Simplify right side
236,173,107.20x = 74,146,281,735,805,984 - Step 5: Solve for x
x = 74,146,281,735,805,984/236,173,107.20 - Step 6: Final answer
x = 313,948,876.80
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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.