Finding the Fourth Proportional to 18,672,827.99, 25,768,615.05 and 10,413,412.45
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Solution
The fourth proportional to 18,672,827.99, 25,768,615.05 and 10,413,412.45 is: 14,370,571.88
Step by Step Solution
- Step 1: Write the proportion equation
18,672,827.99 : 25,768,615.05 = 10,413,412.45 : x - Step 2: Convert to fraction form
18,672,827.99/25,768,615.05 = 10,413,412.45/x - Step 3: Cross multiply
18,672,827.99x = 25,768,615.05 × 10,413,412.45 - Step 4: Simplify right side
18,672,827.99x = 268,339,216,780,927.38 - Step 5: Solve for x
x = 268,339,216,780,927.38/18,672,827.99 - Step 6: Final answer
x = 14,370,571.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.