Finding the Fourth Proportional to 11,108,388.24, 15,330,729.60 and 6,398,946.54
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Solution
The fourth proportional to 11,108,388.24, 15,330,729.60 and 6,398,946.54 is: 8,831,210.88
Step by Step Solution
- Step 1: Write the proportion equation
11,108,388.24 : 15,330,729.60 = 6,398,946.54 : x - Step 2: Convert to fraction form
11,108,388.24/15,330,729.60 = 6,398,946.54/x - Step 3: Cross multiply
11,108,388.24x = 15,330,729.60 × 6,398,946.54 - Step 4: Simplify right side
11,108,388.24x = 98,100,519,129,595.58 - Step 5: Solve for x
x = 98,100,519,129,595.58/11,108,388.24 - Step 6: Final answer
x = 8,831,210.88
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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.