Finding the Fourth Proportional to 11,457,925.76, 15,811,621.80 and 6,301,287.20
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Solution
The fourth proportional to 11,457,925.76, 15,811,621.80 and 6,301,287.20 is: 8,695,602.69
Step by Step Solution
- Step 1: Write the proportion equation
11,457,925.76 : 15,811,621.80 = 6,301,287.20 : x - Step 2: Convert to fraction form
11,457,925.76/15,811,621.80 = 6,301,287.20/x - Step 3: Cross multiply
11,457,925.76x = 15,811,621.80 × 6,301,287.20 - Step 4: Simplify right side
11,457,925.76x = 99,633,570,059,580.97 - Step 5: Solve for x
x = 99,633,570,059,580.97/11,457,925.76 - Step 6: Final answer
x = 8,695,602.69
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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.