Finding the Fourth Proportional to 420,616,682.11, 630,361,048.50 and 327,356,260.06
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Solution
The fourth proportional to 420,616,682.11, 630,361,048.50 and 327,356,260.06 is: 490,595,461.62
Step by Step Solution
- Step 1: Write the proportion equation
420,616,682.11 : 630,361,048.50 = 327,356,260.06 : x - Step 2: Convert to fraction form
420,616,682.11/630,361,048.50 = 327,356,260.06/x - Step 3: Cross multiply
420,616,682.11x = 630,361,048.50 × 327,356,260.06 - Step 4: Simplify right side
420,616,682.11x = 206,352,635,324,460,288 - Step 5: Solve for x
x = 206,352,635,324,460,288/420,616,682.11 - Step 6: Final answer
x = 490,595,461.62
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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.