Finding the Fourth Proportional to 97,989,956.20, 146,984,934.30 and 68,764,637.80
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Solution
The fourth proportional to 97,989,956.20, 146,984,934.30 and 68,764,637.80 is: 103,146,956.70
Step by Step Solution
- Step 1: Write the proportion equation
97,989,956.20 : 146,984,934.30 = 68,764,637.80 : x - Step 2: Convert to fraction form
97,989,956.20/146,984,934.30 = 68,764,637.80/x - Step 3: Cross multiply
97,989,956.20x = 146,984,934.30 × 68,764,637.80 - Step 4: Simplify right side
97,989,956.20x = 10,107,365,769,196,296 - Step 5: Solve for x
x = 10,107,365,769,196,296/97,989,956.20 - Step 6: Final answer
x = 103,146,956.70
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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.