Finding the Fourth Proportional to 141,793,676.70, 212,690,515.05 and 121,386,342.30
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Solution
The fourth proportional to 141,793,676.70, 212,690,515.05 and 121,386,342.30 is: 182,079,513.45
Step by Step Solution
- Step 1: Write the proportion equation
141,793,676.70 : 212,690,515.05 = 121,386,342.30 : x - Step 2: Convert to fraction form
141,793,676.70/212,690,515.05 = 121,386,342.30/x - Step 3: Cross multiply
141,793,676.70x = 212,690,515.05 × 121,386,342.30 - Step 4: Simplify right side
141,793,676.70x = 25,817,723,663,822,604 - Step 5: Solve for x
x = 25,817,723,663,822,604/141,793,676.70 - Step 6: Final answer
x = 182,079,513.45
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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.