Finding the Fourth Proportional to 229,845,173.20, 317,193,068.42 and 125,429,974.68
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Solution
The fourth proportional to 229,845,173.20, 317,193,068.42 and 125,429,974.68 is: 173,097,037.40
Step by Step Solution
- Step 1: Write the proportion equation
229,845,173.20 : 317,193,068.42 = 125,429,974.68 : x - Step 2: Convert to fraction form
229,845,173.20/317,193,068.42 = 125,429,974.68/x - Step 3: Cross multiply
229,845,173.20x = 317,193,068.42 × 125,429,974.68 - Step 4: Simplify right side
229,845,173.20x = 39,785,518,540,592,112 - Step 5: Solve for x
x = 39,785,518,540,592,112/229,845,173.20 - Step 6: Final answer
x = 173,097,037.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.