Finding the Fourth Proportional to 213,073,931.12, 319,625,068.48 and 74,882,824.88
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Solution
The fourth proportional to 213,073,931.12, 319,625,068.48 and 74,882,824.88 is: 112,329,217.87
Step by Step Solution
- Step 1: Write the proportion equation
213,073,931.12 : 319,625,068.48 = 74,882,824.88 : x - Step 2: Convert to fraction form
213,073,931.12/319,625,068.48 = 74,882,824.88/x - Step 3: Cross multiply
213,073,931.12x = 319,625,068.48 × 74,882,824.88 - Step 4: Simplify right side
213,073,931.12x = 23,934,428,030,245,848 - Step 5: Solve for x
x = 23,934,428,030,245,848/213,073,931.12 - Step 6: Final answer
x = 112,329,217.87
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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.