Finding the Fourth Proportional to 142,914,021.94, 214,372,349.97 and 40,678,031.62
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Solution
The fourth proportional to 142,914,021.94, 214,372,349.97 and 40,678,031.62 is: 61,017,422.31
Step by Step Solution
- Step 1: Write the proportion equation
142,914,021.94 : 214,372,349.97 = 40,678,031.62 : x - Step 2: Convert to fraction form
142,914,021.94/214,372,349.97 = 40,678,031.62/x - Step 3: Cross multiply
142,914,021.94x = 214,372,349.97 × 40,678,031.62 - Step 4: Simplify right side
142,914,021.94x = 8,720,245,230,533,365 - Step 5: Solve for x
x = 8,720,245,230,533,365/142,914,021.94 - Step 6: Final answer
x = 61,017,422.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.