Finding the Fourth Proportional to 194,017,689.20, 291,239,110.20 and 121,316,560.40
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Solution
The fourth proportional to 194,017,689.20, 291,239,110.20 and 121,316,560.40 is: 182,107,761.66
Step by Step Solution
- Step 1: Write the proportion equation
194,017,689.20 : 291,239,110.20 = 121,316,560.40 : x - Step 2: Convert to fraction form
194,017,689.20/291,239,110.20 = 121,316,560.40/x - Step 3: Cross multiply
194,017,689.20x = 291,239,110.20 × 121,316,560.40 - Step 4: Simplify right side
194,017,689.20x = 35,332,127,103,420,556 - Step 5: Solve for x
x = 35,332,127,103,420,556/194,017,689.20 - Step 6: Final answer
x = 182,107,761.66
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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.