Finding the Fourth Proportional to 57,378,729.47, 79,184,306.18 and 31,274,938.04
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Solution
The fourth proportional to 57,378,729.47, 79,184,306.18 and 31,274,938.04 is: 43,160,319.03
Step by Step Solution
- Step 1: Write the proportion equation
57,378,729.47 : 79,184,306.18 = 31,274,938.04 : x - Step 2: Convert to fraction form
57,378,729.47/79,184,306.18 = 31,274,938.04/x - Step 3: Cross multiply
57,378,729.47x = 79,184,306.18 × 31,274,938.04 - Step 4: Simplify right side
57,378,729.47x = 2,476,484,269,519,889 - Step 5: Solve for x
x = 2,476,484,269,519,889/57,378,729.47 - Step 6: Final answer
x = 43,160,319.03
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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.