Finding the Fourth Proportional to 77,295,614.40, 115,943,421.60 and 36,984,830.40
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Solution
The fourth proportional to 77,295,614.40, 115,943,421.60 and 36,984,830.40 is: 55,477,245.60
Step by Step Solution
- Step 1: Write the proportion equation
77,295,614.40 : 115,943,421.60 = 36,984,830.40 : x - Step 2: Convert to fraction form
77,295,614.40/115,943,421.60 = 36,984,830.40/x - Step 3: Cross multiply
77,295,614.40x = 115,943,421.60 × 36,984,830.40 - Step 4: Simplify right side
77,295,614.40x = 4,288,147,783,871,696 - Step 5: Solve for x
x = 4,288,147,783,871,696/77,295,614.40 - Step 6: Final answer
x = 55,477,245.60
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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.