Finding the Fourth Proportional to 30,555,794.86, 42,167,794.74 and 16,805,119.84
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Solution
The fourth proportional to 30,555,794.86, 42,167,794.74 and 16,805,119.84 is: 23,191,504.17
Step by Step Solution
- Step 1: Write the proportion equation
30,555,794.86 : 42,167,794.74 = 16,805,119.84 : x - Step 2: Convert to fraction form
30,555,794.86/42,167,794.74 = 16,805,119.84/x - Step 3: Cross multiply
30,555,794.86x = 42,167,794.74 × 16,805,119.84 - Step 4: Simplify right side
30,555,794.86x = 708,634,843,994,221.62 - Step 5: Solve for x
x = 708,634,843,994,221.62/30,555,794.86 - Step 6: Final answer
x = 23,191,504.17
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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.