Finding the Fourth Proportional to 18,134,512.20, 27,201,768.30 and 15,772,552.20
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Solution
The fourth proportional to 18,134,512.20, 27,201,768.30 and 15,772,552.20 is: 23,658,828.30
Step by Step Solution
- Step 1: Write the proportion equation
18,134,512.20 : 27,201,768.30 = 15,772,552.20 : x - Step 2: Convert to fraction form
18,134,512.20/27,201,768.30 = 15,772,552.20/x - Step 3: Cross multiply
18,134,512.20x = 27,201,768.30 × 15,772,552.20 - Step 4: Simplify right side
18,134,512.20x = 429,041,310,444,055.25 - Step 5: Solve for x
x = 429,041,310,444,055.25/18,134,512.20 - Step 6: Final answer
x = 23,658,828.30
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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.