Finding the Fourth Proportional to 7,392,538.71, 11,088,801.86 and 2,782,386.45
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Solution
The fourth proportional to 7,392,538.71, 11,088,801.86 and 2,782,386.45 is: 4,173,577.34
Step by Step Solution
- Step 1: Write the proportion equation
7,392,538.71 : 11,088,801.86 = 2,782,386.45 : x - Step 2: Convert to fraction form
7,392,538.71/11,088,801.86 = 2,782,386.45/x - Step 3: Cross multiply
7,392,538.71x = 11,088,801.86 × 2,782,386.45 - Step 4: Simplify right side
7,392,538.71x = 30,853,332,028,086.87 - Step 5: Solve for x
x = 30,853,332,028,086.87/7,392,538.71 - Step 6: Final answer
x = 4,173,577.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.