Finding the Fourth Proportional to 394,488,995.22, 544,395,451.14 and 218,284,417.26
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Solution
The fourth proportional to 394,488,995.22, 544,395,451.14 and 218,284,417.26 is: 301,232,848.70
Step by Step Solution
- Step 1: Write the proportion equation
394,488,995.22 : 544,395,451.14 = 218,284,417.26 : x - Step 2: Convert to fraction form
394,488,995.22/544,395,451.14 = 218,284,417.26/x - Step 3: Cross multiply
394,488,995.22x = 544,395,451.14 × 218,284,417.26 - Step 4: Simplify right side
394,488,995.22x = 118,833,043,811,904,992 - Step 5: Solve for x
x = 118,833,043,811,904,992/394,488,995.22 - Step 6: Final answer
x = 301,232,848.70
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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.