Finding the Fourth Proportional to 11,435,964.28, 15,781,630.80 and 6,279,325.81
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Solution
The fourth proportional to 11,435,964.28, 15,781,630.80 and 6,279,325.81 is: 8,665,469.67
Step by Step Solution
- Step 1: Write the proportion equation
11,435,964.28 : 15,781,630.80 = 6,279,325.81 : x - Step 2: Convert to fraction form
11,435,964.28/15,781,630.80 = 6,279,325.81/x - Step 3: Cross multiply
11,435,964.28x = 15,781,630.80 × 6,279,325.81 - Step 4: Simplify right side
11,435,964.28x = 99,098,001,606,330.95 - Step 5: Solve for x
x = 99,098,001,606,330.95/11,435,964.28 - Step 6: Final answer
x = 8,665,469.67
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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.