Finding the Fourth Proportional to 11,078,786.91, 15,291,276.87 and 6,496,584.51
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Solution
The fourth proportional to 11,078,786.91, 15,291,276.87 and 6,496,584.51 is: 8,966,782.49
Step by Step Solution
- Step 1: Write the proportion equation
11,078,786.91 : 15,291,276.87 = 6,496,584.51 : x - Step 2: Convert to fraction form
11,078,786.91/15,291,276.87 = 6,496,584.51/x - Step 3: Cross multiply
11,078,786.91x = 15,291,276.87 × 6,496,584.51 - Step 4: Simplify right side
11,078,786.91x = 99,341,072,451,763.28 - Step 5: Solve for x
x = 99,341,072,451,763.28/11,078,786.91 - Step 6: Final answer
x = 8,966,782.49
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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.