Finding the Fourth Proportional to 10,909,623.09, 15,069,650.94 and 8,086,392.99
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Solution
The fourth proportional to 10,909,623.09, 15,069,650.94 and 8,086,392.99 is: 11,169,874.41
Step by Step Solution
- Step 1: Write the proportion equation
10,909,623.09 : 15,069,650.94 = 8,086,392.99 : x - Step 2: Convert to fraction form
10,909,623.09/15,069,650.94 = 8,086,392.99/x - Step 3: Cross multiply
10,909,623.09x = 15,069,650.94 × 8,086,392.99 - Step 4: Simplify right side
10,909,623.09x = 121,859,119,722,962.91 - Step 5: Solve for x
x = 121,859,119,722,962.91/10,909,623.09 - Step 6: Final answer
x = 11,169,874.41
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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.