Finding the Fourth Proportional to 77,771,320.80, 116,642,984.40 and 48,965,906.40
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Solution
The fourth proportional to 77,771,320.80, 116,642,984.40 and 48,965,906.40 is: 73,440,047.02
Step by Step Solution
- Step 1: Write the proportion equation
77,771,320.80 : 116,642,984.40 = 48,965,906.40 : x - Step 2: Convert to fraction form
77,771,320.80/116,642,984.40 = 48,965,906.40/x - Step 3: Cross multiply
77,771,320.80x = 116,642,984.40 × 48,965,906.40 - Step 4: Simplify right side
77,771,320.80x = 5,711,529,456,347,060 - Step 5: Solve for x
x = 5,711,529,456,347,060/77,771,320.80 - Step 6: Final answer
x = 73,440,047.02
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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.