Finding the Fourth Proportional to 221,452,201.80, 332,178,302.70 and 208,697,617.80
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Solution
The fourth proportional to 221,452,201.80, 332,178,302.70 and 208,697,617.80 is: 313,046,426.70
Step by Step Solution
- Step 1: Write the proportion equation
221,452,201.80 : 332,178,302.70 = 208,697,617.80 : x - Step 2: Convert to fraction form
221,452,201.80/332,178,302.70 = 208,697,617.80/x - Step 3: Cross multiply
221,452,201.80x = 332,178,302.70 × 208,697,617.80 - Step 4: Simplify right side
221,452,201.80x = 69,324,820,458,337,312 - Step 5: Solve for x
x = 69,324,820,458,337,312/221,452,201.80 - Step 6: Final answer
x = 313,046,426.70
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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.