Finding the Fourth Proportional to 11,122,964.70, 15,605,742.90 and 11,122,964.70
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Solution
The fourth proportional to 11,122,964.70, 15,605,742.90 and 11,122,964.70 is: 15,605,742.90
Step by Step Solution
- Step 1: Write the proportion equation
11,122,964.70 : 15,605,742.90 = 11,122,964.70 : x - Step 2: Convert to fraction form
11,122,964.70/15,605,742.90 = 11,122,964.70/x - Step 3: Cross multiply
11,122,964.70x = 15,605,742.90 × 11,122,964.70 - Step 4: Simplify right side
11,122,964.70x = 173,582,127,393,975.62 - Step 5: Solve for x
x = 173,582,127,393,975.62/11,122,964.70 - Step 6: Final answer
x = 15,605,742.90
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.