Finding the Fourth Proportional to 42,274,850.49, 58,340,729.79 and 40,337,748.05
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Solution
The fourth proportional to 42,274,850.49, 58,340,729.79 and 40,337,748.05 is: 55,667,462.61
Step by Step Solution
- Step 1: Write the proportion equation
42,274,850.49 : 58,340,729.79 = 40,337,748.05 : x - Step 2: Convert to fraction form
42,274,850.49/58,340,729.79 = 40,337,748.05/x - Step 3: Cross multiply
42,274,850.49x = 58,340,729.79 × 40,337,748.05 - Step 4: Simplify right side
42,274,850.49x = 2,353,333,659,030,446 - Step 5: Solve for x
x = 2,353,333,659,030,446/42,274,850.49 - Step 6: Final answer
x = 55,667,462.61
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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.