Finding the Fourth Proportional to 8,428,582.13, 11,630,192.06 and 5,119,154.19
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Solution
The fourth proportional to 8,428,582.13, 11,630,192.06 and 5,119,154.19 is: 7,063,672.81
Step by Step Solution
- Step 1: Write the proportion equation
8,428,582.13 : 11,630,192.06 = 5,119,154.19 : x - Step 2: Convert to fraction form
8,428,582.13/11,630,192.06 = 5,119,154.19/x - Step 3: Cross multiply
8,428,582.13x = 11,630,192.06 × 5,119,154.19 - Step 4: Simplify right side
8,428,582.13x = 59,536,746,388,857.96 - Step 5: Solve for x
x = 59,536,746,388,857.96/8,428,582.13 - Step 6: Final answer
x = 7,063,672.81
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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.