Finding the Fourth Proportional to 22,190,812.38, 30,620,668.83 and 12,266,354.40
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Solution
The fourth proportional to 22,190,812.38, 30,620,668.83 and 12,266,354.40 is: 16,926,102.99
Step by Step Solution
- Step 1: Write the proportion equation
22,190,812.38 : 30,620,668.83 = 12,266,354.40 : x - Step 2: Convert to fraction form
22,190,812.38/30,620,668.83 = 12,266,354.40/x - Step 3: Cross multiply
22,190,812.38x = 30,620,668.83 × 12,266,354.40 - Step 4: Simplify right side
22,190,812.38x = 375,603,975,833,813.31 - Step 5: Solve for x
x = 375,603,975,833,813.31/22,190,812.38 - Step 6: Final answer
x = 16,926,102.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.