Finding the Fourth Proportional to 18,194,190.30, 27,291,285.45 and 15,454,316.70
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Solution
The fourth proportional to 18,194,190.30, 27,291,285.45 and 15,454,316.70 is: 23,181,475.05
Step by Step Solution
- Step 1: Write the proportion equation
18,194,190.30 : 27,291,285.45 = 15,454,316.70 : x - Step 2: Convert to fraction form
18,194,190.30/27,291,285.45 = 15,454,316.70/x - Step 3: Cross multiply
18,194,190.30x = 27,291,285.45 × 15,454,316.70 - Step 4: Simplify right side
18,194,190.30x = 421,768,168,494,402 - Step 5: Solve for x
x = 421,768,168,494,402/18,194,190.30 - Step 6: Final answer
x = 23,181,475.05
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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.