Finding the Fourth Proportional to 11,215,980.36, 15,483,219.66 and 6,569,120.52
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Solution
The fourth proportional to 11,215,980.36, 15,483,219.66 and 6,569,120.52 is: 9,068,412.45
Step by Step Solution
- Step 1: Write the proportion equation
11,215,980.36 : 15,483,219.66 = 6,569,120.52 : x - Step 2: Convert to fraction form
11,215,980.36/15,483,219.66 = 6,569,120.52/x - Step 3: Cross multiply
11,215,980.36x = 15,483,219.66 × 6,569,120.52 - Step 4: Simplify right side
11,215,980.36x = 101,711,135,984,173.42 - Step 5: Solve for x
x = 101,711,135,984,173.42/11,215,980.36 - Step 6: Final answer
x = 9,068,412.45
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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.