Finding the Fourth Proportional to 79,214,629.20, 118,821,943.80 and 76,344,847.80
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Solution
The fourth proportional to 79,214,629.20, 118,821,943.80 and 76,344,847.80 is: 114,517,271.70
Step by Step Solution
- Step 1: Write the proportion equation
79,214,629.20 : 118,821,943.80 = 76,344,847.80 : x - Step 2: Convert to fraction form
79,214,629.20/118,821,943.80 = 76,344,847.80/x - Step 3: Cross multiply
79,214,629.20x = 118,821,943.80 × 76,344,847.80 - Step 4: Simplify right side
79,214,629.20x = 9,071,443,214,711,154 - Step 5: Solve for x
x = 9,071,443,214,711,154/79,214,629.20 - Step 6: Final answer
x = 114,517,271.70
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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.