Finding the Fourth Proportional to 568,878,455.48, 785,115,980.16 and 321,375,752.96
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Solution
The fourth proportional to 568,878,455.48, 785,115,980.16 and 321,375,752.96 is: 443,534,531.59
Step by Step Solution
- Step 1: Write the proportion equation
568,878,455.48 : 785,115,980.16 = 321,375,752.96 : x - Step 2: Convert to fraction form
568,878,455.48/785,115,980.16 = 321,375,752.96/x - Step 3: Cross multiply
568,878,455.48x = 785,115,980.16 × 321,375,752.96 - Step 4: Simplify right side
568,878,455.48x = 252,317,239,284,848,384 - Step 5: Solve for x
x = 252,317,239,284,848,384/568,878,455.48 - Step 6: Final answer
x = 443,534,531.59
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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.