Finding the Fourth Proportional to 11,736,668.16, 16,181,718.60 and 8,387,836.56
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Solution
The fourth proportional to 11,736,668.16, 16,181,718.60 and 8,387,836.56 is: 11,564,577.70
Step by Step Solution
- Step 1: Write the proportion equation
11,736,668.16 : 16,181,718.60 = 8,387,836.56 : x - Step 2: Convert to fraction form
11,736,668.16/16,181,718.60 = 8,387,836.56/x - Step 3: Cross multiply
11,736,668.16x = 16,181,718.60 × 8,387,836.56 - Step 4: Simplify right side
11,736,668.16x = 135,729,610,876,712 - Step 5: Solve for x
x = 135,729,610,876,712/11,736,668.16 - Step 6: Final answer
x = 11,564,577.70
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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.