Finding the Fourth Proportional to 511,289,423.70, 766,934,135.55 and 354,833,193.30
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Solution
The fourth proportional to 511,289,423.70, 766,934,135.55 and 354,833,193.30 is: 532,249,789.95
Step by Step Solution
- Step 1: Write the proportion equation
511,289,423.70 : 766,934,135.55 = 354,833,193.30 : x - Step 2: Convert to fraction form
511,289,423.70/766,934,135.55 = 354,833,193.30/x - Step 3: Cross multiply
511,289,423.70x = 766,934,135.55 × 354,833,193.30 - Step 4: Simplify right side
511,289,423.70x = 272,133,688,367,981,536 - Step 5: Solve for x
x = 272,133,688,367,981,536/511,289,423.70 - Step 6: Final answer
x = 532,249,789.95
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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.