Finding the Fourth Proportional to 47,688,385.20, 71,542,747.35 and 27,227,906.70
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Solution
The fourth proportional to 47,688,385.20, 71,542,747.35 and 27,227,906.70 is: 40,847,666.40
Step by Step Solution
- Step 1: Write the proportion equation
47,688,385.20 : 71,542,747.35 = 27,227,906.70 : x - Step 2: Convert to fraction form
47,688,385.20/71,542,747.35 = 27,227,906.70/x - Step 3: Cross multiply
47,688,385.20x = 71,542,747.35 × 27,227,906.70 - Step 4: Simplify right side
47,688,385.20x = 1,947,959,249,907,472 - Step 5: Solve for x
x = 1,947,959,249,907,472/47,688,385.20 - Step 6: Final answer
x = 40,847,666.40
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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.