Finding the Fourth Proportional to 87,771,034.98, 121,078,106.79 and 54,269,804.97
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Solution
The fourth proportional to 87,771,034.98, 121,078,106.79 and 54,269,804.97 is: 74,863,937.10
Step by Step Solution
- Step 1: Write the proportion equation
87,771,034.98 : 121,078,106.79 = 54,269,804.97 : x - Step 2: Convert to fraction form
87,771,034.98/121,078,106.79 = 54,269,804.97/x - Step 3: Cross multiply
87,771,034.98x = 121,078,106.79 × 54,269,804.97 - Step 4: Simplify right side
87,771,034.98x = 6,570,885,241,630,133 - Step 5: Solve for x
x = 6,570,885,241,630,133/87,771,034.98 - Step 6: Final answer
x = 74,863,937.10
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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.