Finding the Fourth Proportional to 18,376,368.88, 27,565,313.91 and 5,422,519.57
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Solution
The fourth proportional to 18,376,368.88, 27,565,313.91 and 5,422,519.57 is: 8,134,003.79
Step by Step Solution
- Step 1: Write the proportion equation
18,376,368.88 : 27,565,313.91 = 5,422,519.57 : x - Step 2: Convert to fraction form
18,376,368.88/27,565,313.91 = 5,422,519.57/x - Step 3: Cross multiply
18,376,368.88x = 27,565,313.91 × 5,422,519.57 - Step 4: Simplify right side
18,376,368.88x = 149,473,454,130,168.22 - Step 5: Solve for x
x = 149,473,454,130,168.22/18,376,368.88 - Step 6: Final answer
x = 8,134,003.79
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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.