Finding the Fourth Proportional to 213,029,863.20, 319,544,794.80 and 122,330,599.20
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Solution
The fourth proportional to 213,029,863.20, 319,544,794.80 and 122,330,599.20 is: 183,495,898.80
Step by Step Solution
- Step 1: Write the proportion equation
213,029,863.20 : 319,544,794.80 = 122,330,599.20 : x - Step 2: Convert to fraction form
213,029,863.20/319,544,794.80 = 122,330,599.20/x - Step 3: Cross multiply
213,029,863.20x = 319,544,794.80 × 122,330,599.20 - Step 4: Simplify right side
213,029,863.20x = 39,090,106,219,125,048 - Step 5: Solve for x
x = 39,090,106,219,125,048/213,029,863.20 - Step 6: Final answer
x = 183,495,898.80
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1.5x scale
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.