Finding the Fourth Proportional to 5,257,509.42, 7,886,893.86 and 1,613,762.09
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Solution
The fourth proportional to 5,257,509.42, 7,886,893.86 and 1,613,762.09 is: 2,420,836.42
Step by Step Solution
- Step 1: Write the proportion equation
5,257,509.42 : 7,886,893.86 = 1,613,762.09 : x - Step 2: Convert to fraction form
5,257,509.42/7,886,893.86 = 1,613,762.09/x - Step 3: Cross multiply
5,257,509.42x = 7,886,893.86 × 1,613,762.09 - Step 4: Simplify right side
5,257,509.42x = 12,727,570,309,263.15 - Step 5: Solve for x
x = 12,727,570,309,263.15/5,257,509.42 - Step 6: Final answer
x = 2,420,836.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.