Finding the Fourth Proportional to 7,229,048.43, 9,975,451.47 and 4,130,956.99
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Solution
The fourth proportional to 7,229,048.43, 9,975,451.47 and 4,130,956.99 is: 5,700,357.58
Step by Step Solution
- Step 1: Write the proportion equation
7,229,048.43 : 9,975,451.47 = 4,130,956.99 : x - Step 2: Convert to fraction form
7,229,048.43/9,975,451.47 = 4,130,956.99/x - Step 3: Cross multiply
7,229,048.43x = 9,975,451.47 × 4,130,956.99 - Step 4: Simplify right side
7,229,048.43x = 41,208,160,978,402.28 - Step 5: Solve for x
x = 41,208,160,978,402.28/7,229,048.43 - Step 6: Final answer
x = 5,700,357.58
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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.