Finding the Fourth Proportional to 254,657,749.64, 381,986,147.58 and 79,794,170.12
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Solution
The fourth proportional to 254,657,749.64, 381,986,147.58 and 79,794,170.12 is: 119,691,105.75
Step by Step Solution
- Step 1: Write the proportion equation
254,657,749.64 : 381,986,147.58 = 79,794,170.12 : x - Step 2: Convert to fraction form
254,657,749.64/381,986,147.58 = 79,794,170.12/x - Step 3: Cross multiply
254,657,749.64x = 381,986,147.58 × 79,794,170.12 - Step 4: Simplify right side
254,657,749.64x = 30,480,267,643,481,948 - Step 5: Solve for x
x = 30,480,267,643,481,948/254,657,749.64 - Step 6: Final answer
x = 119,691,105.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.