Finding the Fourth Proportional to 22,190,807.70, 30,620,662.48 and 12,266,349.76
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Solution
The fourth proportional to 22,190,807.70, 30,620,662.48 and 12,266,349.76 is: 16,926,096.65
Step by Step Solution
- Step 1: Write the proportion equation
22,190,807.70 : 30,620,662.48 = 12,266,349.76 : x - Step 2: Convert to fraction form
22,190,807.70/30,620,662.48 = 12,266,349.76/x - Step 3: Cross multiply
22,190,807.70x = 30,620,662.48 × 12,266,349.76 - Step 4: Simplify right side
22,190,807.70x = 375,603,755,862,589 - Step 5: Solve for x
x = 375,603,755,862,589/22,190,807.70 - Step 6: Final answer
x = 16,926,096.65
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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.