Finding the Fourth Proportional to 681,248,230.11, 940,122,412.34 and 367,982,447.31
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Solution
The fourth proportional to 681,248,230.11, 940,122,412.34 and 367,982,447.31 is: 507,815,698.85
Step by Step Solution
- Step 1: Write the proportion equation
681,248,230.11 : 940,122,412.34 = 367,982,447.31 : x - Step 2: Convert to fraction form
681,248,230.11/940,122,412.34 = 367,982,447.31/x - Step 3: Cross multiply
681,248,230.11x = 940,122,412.34 × 367,982,447.31 - Step 4: Simplify right side
681,248,230.11x = 345,948,546,062,014,272 - Step 5: Solve for x
x = 345,948,546,062,014,272/681,248,230.11 - Step 6: Final answer
x = 507,815,698.85
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1.5x scale
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.