Finding the Fourth Proportional to 27,687,679.42, 38,209,784.97 and 15,465,323.74
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Solution
The fourth proportional to 27,687,679.42, 38,209,784.97 and 15,465,323.74 is: 21,342,586.56
Step by Step Solution
- Step 1: Write the proportion equation
27,687,679.42 : 38,209,784.97 = 15,465,323.74 : x - Step 2: Convert to fraction form
27,687,679.42/38,209,784.97 = 15,465,323.74/x - Step 3: Cross multiply
27,687,679.42x = 38,209,784.97 × 15,465,323.74 - Step 4: Simplify right side
27,687,679.42x = 590,926,694,596,836.12 - Step 5: Solve for x
x = 590,926,694,596,836.12/27,687,679.42 - Step 6: Final answer
x = 21,342,586.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.