Finding the Fourth Proportional to 7,360,703.76, 10,157,949.21 and 4,097,739.05
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Solution
The fourth proportional to 7,360,703.76, 10,157,949.21 and 4,097,739.05 is: 5,654,978.99
Step by Step Solution
- Step 1: Write the proportion equation
7,360,703.76 : 10,157,949.21 = 4,097,739.05 : x - Step 2: Convert to fraction form
7,360,703.76/10,157,949.21 = 4,097,739.05/x - Step 3: Cross multiply
7,360,703.76x = 10,157,949.21 × 4,097,739.05 - Step 4: Simplify right side
7,360,703.76x = 41,624,625,148,402.73 - Step 5: Solve for x
x = 41,624,625,148,402.73/7,360,703.76 - Step 6: Final answer
x = 5,654,978.99
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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.