Finding the Fourth Proportional to 7,660,708.80, 11,490,620.16 and 2,806,291.20
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Solution
The fourth proportional to 7,660,708.80, 11,490,620.16 and 2,806,291.20 is: 4,209,274.50
Step by Step Solution
- Step 1: Write the proportion equation
7,660,708.80 : 11,490,620.16 = 2,806,291.20 : x - Step 2: Convert to fraction form
7,660,708.80/11,490,620.16 = 2,806,291.20/x - Step 3: Cross multiply
7,660,708.80x = 11,490,620.16 × 2,806,291.20 - Step 4: Simplify right side
7,660,708.80x = 32,246,026,237,550.59 - Step 5: Solve for x
x = 32,246,026,237,550.59/7,660,708.80 - Step 6: Final answer
x = 4,209,274.50
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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.