Finding the Fourth Proportional to 81,657,266.80, 122,485,900.20 and 67,308,359.80
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Solution
The fourth proportional to 81,657,266.80, 122,485,900.20 and 67,308,359.80 is: 100,962,539.70
Step by Step Solution
- Step 1: Write the proportion equation
81,657,266.80 : 122,485,900.20 = 67,308,359.80 : x - Step 2: Convert to fraction form
81,657,266.80/122,485,900.20 = 67,308,359.80/x - Step 3: Cross multiply
81,657,266.80x = 122,485,900.20 × 67,308,359.80 - Step 4: Simplify right side
81,657,266.80x = 8,244,325,041,088,492 - Step 5: Solve for x
x = 8,244,325,041,088,492/81,657,266.80 - Step 6: Final answer
x = 100,962,539.70
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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.