Finding the Fourth Proportional to 352,464,354.71, 486,413,936.39 and 211,358,548.47
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Solution
The fourth proportional to 352,464,354.71, 486,413,936.39 and 211,358,548.47 is: 291,682,668.55
Step by Step Solution
- Step 1: Write the proportion equation
352,464,354.71 : 486,413,936.39 = 211,358,548.47 : x - Step 2: Convert to fraction form
352,464,354.71/486,413,936.39 = 211,358,548.47/x - Step 3: Cross multiply
352,464,354.71x = 486,413,936.39 × 211,358,548.47 - Step 4: Simplify right side
352,464,354.71x = 102,807,743,549,912,512 - Step 5: Solve for x
x = 102,807,743,549,912,512/352,464,354.71 - Step 6: Final answer
x = 291,682,668.55
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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.