Finding the Fourth Proportional to 217,038,204.20, 325,557,306.30 and 187,812,885.80
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Solution
The fourth proportional to 217,038,204.20, 325,557,306.30 and 187,812,885.80 is: 281,719,328.70
Step by Step Solution
- Step 1: Write the proportion equation
217,038,204.20 : 325,557,306.30 = 187,812,885.80 : x - Step 2: Convert to fraction form
217,038,204.20/325,557,306.30 = 187,812,885.80/x - Step 3: Cross multiply
217,038,204.20x = 325,557,306.30 × 187,812,885.80 - Step 4: Simplify right side
217,038,204.20x = 61,143,857,189,477,528 - Step 5: Solve for x
x = 61,143,857,189,477,528/217,038,204.20 - Step 6: Final answer
x = 281,719,328.70
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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.