Finding the Fourth Proportional to 5,378,334.55, 7,421,837.43 and 2,930,938.02
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Solution
The fourth proportional to 5,378,334.55, 7,421,837.43 and 2,930,938.02 is: 4,044,550.46
Step by Step Solution
- Step 1: Write the proportion equation
5,378,334.55 : 7,421,837.43 = 2,930,938.02 : x - Step 2: Convert to fraction form
5,378,334.55/7,421,837.43 = 2,930,938.02/x - Step 3: Cross multiply
5,378,334.55x = 7,421,837.43 × 2,930,938.02 - Step 4: Simplify right side
5,378,334.55x = 21,752,945,501,846.09 - Step 5: Solve for x
x = 21,752,945,501,846.09/5,378,334.55 - Step 6: Final answer
x = 4,044,550.46
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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.