Finding the Fourth Proportional to 18,486,390.62, 27,732,109.40 and 7,701,169.23
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Solution
The fourth proportional to 18,486,390.62, 27,732,109.40 and 7,701,169.23 is: 11,552,805.09
Step by Step Solution
- Step 1: Write the proportion equation
18,486,390.62 : 27,732,109.40 = 7,701,169.23 : x - Step 2: Convert to fraction form
18,486,390.62/27,732,109.40 = 7,701,169.23/x - Step 3: Cross multiply
18,486,390.62x = 27,732,109.40 × 7,701,169.23 - Step 4: Simplify right side
18,486,390.62x = 213,569,667,555,767.94 - Step 5: Solve for x
x = 213,569,667,555,767.94/18,486,390.62 - Step 6: Final answer
x = 11,552,805.09
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1.5x scale
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.