Finding the Fourth Proportional to 5,395,090.21, 7,445,137.61 and 2,947,648.68
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Solution
The fourth proportional to 5,395,090.21, 7,445,137.61 and 2,947,648.68 is: 4,067,707.71
Step by Step Solution
- Step 1: Write the proportion equation
5,395,090.21 : 7,445,137.61 = 2,947,648.68 : x - Step 2: Convert to fraction form
5,395,090.21/7,445,137.61 = 2,947,648.68/x - Step 3: Cross multiply
5,395,090.21x = 7,445,137.61 × 2,947,648.68 - Step 4: Simplify right side
5,395,090.21x = 21,945,650,055,903.98 - Step 5: Solve for x
x = 21,945,650,055,903.98/5,395,090.21 - Step 6: Final answer
x = 4,067,707.71
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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.