Finding the Fourth Proportional to 30,157,997.76, 41,632,491.96 and 18,565,498.08
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Solution
The fourth proportional to 30,157,997.76, 41,632,491.96 and 18,565,498.08 is: 25,629,285.99
Step by Step Solution
- Step 1: Write the proportion equation
30,157,997.76 : 41,632,491.96 = 18,565,498.08 : x - Step 2: Convert to fraction form
30,157,997.76/41,632,491.96 = 18,565,498.08/x - Step 3: Cross multiply
30,157,997.76x = 41,632,491.96 × 18,565,498.08 - Step 4: Simplify right side
30,157,997.76x = 772,927,949,548,995.38 - Step 5: Solve for x
x = 772,927,949,548,995.38/30,157,997.76 - Step 6: Final answer
x = 25,629,285.99
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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.