Finding the Fourth Proportional to 11,537,742.71, 15,926,987.49 and 7,188,977.62
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Solution
The fourth proportional to 11,537,742.71, 15,926,987.49 and 7,188,977.62 is: 9,923,843.81
Step by Step Solution
- Step 1: Write the proportion equation
11,537,742.71 : 15,926,987.49 = 7,188,977.62 : x - Step 2: Convert to fraction form
11,537,742.71/15,926,987.49 = 7,188,977.62/x - Step 3: Cross multiply
11,537,742.71x = 15,926,987.49 × 7,188,977.62 - Step 4: Simplify right side
11,537,742.71x = 114,498,756,619,629.98 - Step 5: Solve for x
x = 114,498,756,619,629.98/11,537,742.71 - Step 6: Final answer
x = 9,923,843.81
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1.5x scale
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.