Finding the Fourth Proportional to 12,857,643.36, 19,289,410.61 and 5,572,325.97
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Solution
The fourth proportional to 12,857,643.36, 19,289,410.61 and 5,572,325.97 is: 8,359,765.52
Step by Step Solution
- Step 1: Write the proportion equation
12,857,643.36 : 19,289,410.61 = 5,572,325.97 : x - Step 2: Convert to fraction form
12,857,643.36/19,289,410.61 = 5,572,325.97/x - Step 3: Cross multiply
12,857,643.36x = 19,289,410.61 × 5,572,325.97 - Step 4: Simplify right side
12,857,643.36x = 107,486,883,660,234.91 - Step 5: Solve for x
x = 107,486,883,660,234.91/12,857,643.36 - Step 6: Final answer
x = 8,359,765.52
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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.