Finding the Fourth Proportional to 129,668,845.25, 194,191,607.50 and 74,168,422.70
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Solution
The fourth proportional to 129,668,845.25, 194,191,607.50 and 74,168,422.70 is: 111,074,369.50
Step by Step Solution
- Step 1: Write the proportion equation
129,668,845.25 : 194,191,607.50 = 74,168,422.70 : x - Step 2: Convert to fraction form
129,668,845.25/194,191,607.50 = 74,168,422.70/x - Step 3: Cross multiply
129,668,845.25x = 194,191,607.50 × 74,168,422.70 - Step 4: Simplify right side
129,668,845.25x = 14,402,885,229,660,134 - Step 5: Solve for x
x = 14,402,885,229,660,134/129,668,845.25 - Step 6: Final answer
x = 111,074,369.50
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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.