Finding the Fourth Proportional to 5,731,649.21, 7,909,675.64 and 3,153,274.63
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Solution
The fourth proportional to 5,731,649.21, 7,909,675.64 and 3,153,274.63 is: 4,351,518.83
Step by Step Solution
- Step 1: Write the proportion equation
5,731,649.21 : 7,909,675.64 = 3,153,274.63 : x - Step 2: Convert to fraction form
5,731,649.21/7,909,675.64 = 3,153,274.63/x - Step 3: Cross multiply
5,731,649.21x = 7,909,675.64 × 3,153,274.63 - Step 4: Simplify right side
5,731,649.21x = 24,941,379,471,826.26 - Step 5: Solve for x
x = 24,941,379,471,826.26/5,731,649.21 - Step 6: Final answer
x = 4,351,518.83
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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.