Finding the Fourth Proportional to 7,281,678.47, 10,052,493.90 and 5,319,353.08
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Solution
The fourth proportional to 7,281,678.47, 10,052,493.90 and 5,319,353.08 is: 7,343,466.84
Step by Step Solution
- Step 1: Write the proportion equation
7,281,678.47 : 10,052,493.90 = 5,319,353.08 : x - Step 2: Convert to fraction form
7,281,678.47/10,052,493.90 = 5,319,353.08/x - Step 3: Cross multiply
7,281,678.47x = 10,052,493.90 × 5,319,353.08 - Step 4: Simplify right side
7,281,678.47x = 53,472,764,347,161.32 - Step 5: Solve for x
x = 53,472,764,347,161.32/7,281,678.47 - Step 6: Final answer
x = 7,343,466.84
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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.