Finding the Fourth Proportional to 18,128,331.74, 27,185,615.85 and 5,994,155.90
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Solution
The fourth proportional to 18,128,331.74, 27,185,615.85 and 5,994,155.90 is: 8,988,958.39
Step by Step Solution
- Step 1: Write the proportion equation
18,128,331.74 : 27,185,615.85 = 5,994,155.90 : x - Step 2: Convert to fraction form
18,128,331.74/27,185,615.85 = 5,994,155.90/x - Step 3: Cross multiply
18,128,331.74x = 27,185,615.85 × 5,994,155.90 - Step 4: Simplify right side
18,128,331.74x = 162,954,819,642,411.03 - Step 5: Solve for x
x = 162,954,819,642,411.03/18,128,331.74 - Step 6: Final answer
x = 8,988,958.39
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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.