Finding the Fourth Proportional to 28,425,040.99, 39,226,674.78 and 15,372,299.91
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Solution
The fourth proportional to 28,425,040.99, 39,226,674.78 and 15,372,299.91 is: 21,213,837.80
Step by Step Solution
- Step 1: Write the proportion equation
28,425,040.99 : 39,226,674.78 = 15,372,299.91 : x - Step 2: Convert to fraction form
28,425,040.99/39,226,674.78 = 15,372,299.91/x - Step 3: Cross multiply
28,425,040.99x = 39,226,674.78 × 15,372,299.91 - Step 4: Simplify right side
28,425,040.99x = 603,004,209,087,820.25 - Step 5: Solve for x
x = 603,004,209,087,820.25/28,425,040.99 - Step 6: Final answer
x = 21,213,837.80
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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.