Finding the Fourth Proportional to 221,452,131.70, 332,178,197.55 and 135,358,689.70
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Solution
The fourth proportional to 221,452,131.70, 332,178,197.55 and 135,358,689.70 is: 203,038,034.55
Step by Step Solution
- Step 1: Write the proportion equation
221,452,131.70 : 332,178,197.55 = 135,358,689.70 : x - Step 2: Convert to fraction form
221,452,131.70/332,178,197.55 = 135,358,689.70/x - Step 3: Cross multiply
221,452,131.70x = 332,178,197.55 × 135,358,689.70 - Step 4: Simplify right side
221,452,131.70x = 44,963,205,567,275,744 - Step 5: Solve for x
x = 44,963,205,567,275,744/221,452,131.70 - Step 6: Final answer
x = 203,038,034.55
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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.