Finding the Fourth Proportional to 212,784,880.56, 319,234,182.84 and 76,471,445.04
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Solution
The fourth proportional to 212,784,880.56, 319,234,182.84 and 76,471,445.04 is: 114,727,602.84
Step by Step Solution
- Step 1: Write the proportion equation
212,784,880.56 : 319,234,182.84 = 76,471,445.04 : x - Step 2: Convert to fraction form
212,784,880.56/319,234,182.84 = 76,471,445.04/x - Step 3: Cross multiply
212,784,880.56x = 319,234,182.84 × 76,471,445.04 - Step 4: Simplify right side
212,784,880.56x = 24,412,299,267,938,372 - Step 5: Solve for x
x = 24,412,299,267,938,372/212,784,880.56 - Step 6: Final answer
x = 114,727,602.84
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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.