Finding the Fourth Proportional to 74,246,847.80, 111,370,271.70 and 69,207,999.80
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Solution
The fourth proportional to 74,246,847.80, 111,370,271.70 and 69,207,999.80 is: 103,811,999.70
Step by Step Solution
- Step 1: Write the proportion equation
74,246,847.80 : 111,370,271.70 = 69,207,999.80 : x - Step 2: Convert to fraction form
74,246,847.80/111,370,271.70 = 69,207,999.80/x - Step 3: Cross multiply
74,246,847.80x = 111,370,271.70 × 69,207,999.80 - Step 4: Simplify right side
74,246,847.80x = 7,707,713,741,539,546 - Step 5: Solve for x
x = 7,707,713,741,539,546/74,246,847.80 - Step 6: Final answer
x = 103,811,999.70
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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.