Finding the Fourth Proportional to 5,177,987.53, 7,769,642.55 and 3,971,315.95
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Solution
The fourth proportional to 5,177,987.53, 7,769,642.55 and 3,971,315.95 is: 5,959,015.00
Step by Step Solution
- Step 1: Write the proportion equation
5,177,987.53 : 7,769,642.55 = 3,971,315.95 : x - Step 2: Convert to fraction form
5,177,987.53/7,769,642.55 = 3,971,315.95/x - Step 3: Cross multiply
5,177,987.53x = 7,769,642.55 × 3,971,315.95 - Step 4: Simplify right side
5,177,987.53x = 30,855,705,384,613.67 - Step 5: Solve for x
x = 30,855,705,384,613.67/5,177,987.53 - Step 6: Final answer
x = 5,959,015.00
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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.