Finding the Fourth Proportional to 8,428,580.62, 11,630,189.99 and 5,119,152.68
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Solution
The fourth proportional to 8,428,580.62, 11,630,189.99 and 5,119,152.68 is: 7,063,670.74
Step by Step Solution
- Step 1: Write the proportion equation
8,428,580.62 : 11,630,189.99 = 5,119,152.68 : x - Step 2: Convert to fraction form
8,428,580.62/11,630,189.99 = 5,119,152.68/x - Step 3: Cross multiply
8,428,580.62x = 11,630,189.99 × 5,119,152.68 - Step 4: Simplify right side
8,428,580.62x = 59,536,718,298,091.03 - Step 5: Solve for x
x = 59,536,718,298,091.03/8,428,580.62 - Step 6: Final answer
x = 7,063,670.74
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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.