Finding the Fourth Proportional to 5,177,134.20, 7,765,701.30 and 3,292,231.80
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Solution
The fourth proportional to 5,177,134.20, 7,765,701.30 and 3,292,231.80 is: 4,938,347.70
Step by Step Solution
- Step 1: Write the proportion equation
5,177,134.20 : 7,765,701.30 = 3,292,231.80 : x - Step 2: Convert to fraction form
5,177,134.20/7,765,701.30 = 3,292,231.80/x - Step 3: Cross multiply
5,177,134.20x = 7,765,701.30 × 3,292,231.80 - Step 4: Simplify right side
5,177,134.20x = 25,566,488,769,161.34 - Step 5: Solve for x
x = 25,566,488,769,161.34/5,177,134.20 - Step 6: Final answer
x = 4,938,347.70
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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.