Finding the Fourth Proportional to 196,992,207.80, 295,488,311.70 and 81,938,511.80
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Solution
The fourth proportional to 196,992,207.80, 295,488,311.70 and 81,938,511.80 is: 122,907,767.70
Step by Step Solution
- Step 1: Write the proportion equation
196,992,207.80 : 295,488,311.70 = 81,938,511.80 : x - Step 2: Convert to fraction form
196,992,207.80/295,488,311.70 = 81,938,511.80/x - Step 3: Cross multiply
196,992,207.80x = 295,488,311.70 × 81,938,511.80 - Step 4: Simplify right side
196,992,207.80x = 24,211,872,514,992,528 - Step 5: Solve for x
x = 24,211,872,514,992,528/196,992,207.80 - Step 6: Final answer
x = 122,907,767.70
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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.