Finding the Fourth Proportional to 8,428,625.58, 11,630,252.09 and 5,119,197.65
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Solution
The fourth proportional to 8,428,625.58, 11,630,252.09 and 5,119,197.65 is: 7,063,732.81
Step by Step Solution
- Step 1: Write the proportion equation
8,428,625.58 : 11,630,252.09 = 5,119,197.65 : x - Step 2: Convert to fraction form
8,428,625.58/11,630,252.09 = 5,119,197.65/x - Step 3: Cross multiply
8,428,625.58x = 11,630,252.09 × 5,119,197.65 - Step 4: Simplify right side
8,428,625.58x = 59,537,559,084,288.34 - Step 5: Solve for x
x = 59,537,559,084,288.34/8,428,625.58 - Step 6: Final answer
x = 7,063,732.81
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1.5x scale
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.