Finding the Fourth Proportional to 254,919,449.12, 351,768,717.36 and 143,388,085.44
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Solution
The fourth proportional to 254,919,449.12, 351,768,717.36 and 143,388,085.44 is: 197,864,239.37
Step by Step Solution
- Step 1: Write the proportion equation
254,919,449.12 : 351,768,717.36 = 143,388,085.44 : x - Step 2: Convert to fraction form
254,919,449.12/351,768,717.36 = 143,388,085.44/x - Step 3: Cross multiply
254,919,449.12x = 351,768,717.36 × 143,388,085.44 - Step 4: Simplify right side
254,919,449.12x = 50,439,442,899,934,896 - Step 5: Solve for x
x = 50,439,442,899,934,896/254,919,449.12 - Step 6: Final answer
x = 197,864,239.37
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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.