Finding the Fourth Proportional to 7,762,062.40, 11,648,623.20 and 3,277,556.80
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Solution
The fourth proportional to 7,762,062.40, 11,648,623.20 and 3,277,556.80 is: 4,918,670.09
Step by Step Solution
- Step 1: Write the proportion equation
7,762,062.40 : 11,648,623.20 = 3,277,556.80 : x - Step 2: Convert to fraction form
7,762,062.40/11,648,623.20 = 3,277,556.80/x - Step 3: Cross multiply
7,762,062.40x = 11,648,623.20 × 3,277,556.80 - Step 4: Simplify right side
7,762,062.40x = 38,179,024,179,797.76 - Step 5: Solve for x
x = 38,179,024,179,797.76/7,762,062.40 - Step 6: Final answer
x = 4,918,670.09
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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.