Finding the Fourth Proportional to 199,611,286.80, 299,416,930.20 and 113,316,349.20
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Solution
The fourth proportional to 199,611,286.80, 299,416,930.20 and 113,316,349.20 is: 169,974,523.80
Step by Step Solution
- Step 1: Write the proportion equation
199,611,286.80 : 299,416,930.20 = 113,316,349.20 : x - Step 2: Convert to fraction form
199,611,286.80/299,416,930.20 = 113,316,349.20/x - Step 3: Cross multiply
199,611,286.80x = 299,416,930.20 × 113,316,349.20 - Step 4: Simplify right side
199,611,286.80x = 33,928,833,418,935,224 - Step 5: Solve for x
x = 33,928,833,418,935,224/199,611,286.80 - Step 6: Final answer
x = 169,974,523.80
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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.