Finding the Fourth Proportional to 2,990,526.21, 4,125,697.47 and 2,218,057.63
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Solution
The fourth proportional to 2,990,526.21, 4,125,697.47 and 2,218,057.63 is: 3,060,008.21
Step by Step Solution
- Step 1: Write the proportion equation
2,990,526.21 : 4,125,697.47 = 2,218,057.63 : x - Step 2: Convert to fraction form
2,990,526.21/4,125,697.47 = 2,218,057.63/x - Step 3: Cross multiply
2,990,526.21x = 4,125,697.47 × 2,218,057.63 - Step 4: Simplify right side
2,990,526.21x = 9,151,034,742,090.95 - Step 5: Solve for x
x = 9,151,034,742,090.95/2,990,526.21 - Step 6: Final answer
x = 3,060,008.21
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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.