Finding the Fourth Proportional to 7,420,620.21, 10,241,537.00 and 4,157,655.50
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Solution
The fourth proportional to 7,420,620.21, 10,241,537.00 and 4,157,655.50 is: 5,738,170.31
Step by Step Solution
- Step 1: Write the proportion equation
7,420,620.21 : 10,241,537.00 = 4,157,655.50 : x - Step 2: Convert to fraction form
7,420,620.21/10,241,537.00 = 4,157,655.50/x - Step 3: Cross multiply
7,420,620.21x = 10,241,537.00 × 4,157,655.50 - Step 4: Simplify right side
7,420,620.21x = 42,580,782,564,507.54 - Step 5: Solve for x
x = 42,580,782,564,507.54/7,420,620.21 - Step 6: Final answer
x = 5,738,170.31
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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.