Finding the Fourth Proportional to 11,687,478.34, 16,128,410.71 and 6,530,882.26
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Solution
The fourth proportional to 11,687,478.34, 16,128,410.71 and 6,530,882.26 is: 9,012,444.63
Step by Step Solution
- Step 1: Write the proportion equation
11,687,478.34 : 16,128,410.71 = 6,530,882.26 : x - Step 2: Convert to fraction form
11,687,478.34/16,128,410.71 = 6,530,882.26/x - Step 3: Cross multiply
11,687,478.34x = 16,128,410.71 × 6,530,882.26 - Step 4: Simplify right side
11,687,478.34x = 105,332,751,307,290.95 - Step 5: Solve for x
x = 105,332,751,307,290.95/11,687,478.34 - Step 6: Final answer
x = 9,012,444.63
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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.