Finding the Fourth Proportional to 347,238,675.83, 479,190,053.05 and 206,138,193.92
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Solution
The fourth proportional to 347,238,675.83, 479,190,053.05 and 206,138,193.92 is: 284,471,111.53
Step by Step Solution
- Step 1: Write the proportion equation
347,238,675.83 : 479,190,053.05 = 206,138,193.92 : x - Step 2: Convert to fraction form
347,238,675.83/479,190,053.05 = 206,138,193.92/x - Step 3: Cross multiply
347,238,675.83x = 479,190,053.05 × 206,138,193.92 - Step 4: Simplify right side
347,238,675.83x = 98,779,372,080,155,984 - Step 5: Solve for x
x = 98,779,372,080,155,984/347,238,675.83 - Step 6: Final answer
x = 284,471,111.53
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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.