Finding the Fourth Proportional to 884,388,861.12, 1,220,449,812.48 and 487,928,560.80
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Solution
The fourth proportional to 884,388,861.12, 1,220,449,812.48 and 487,928,560.80 is: 673,337,653.50
Step by Step Solution
- Step 1: Write the proportion equation
884,388,861.12 : 1,220,449,812.48 = 487,928,560.80 : x - Step 2: Convert to fraction form
884,388,861.12/1,220,449,812.48 = 487,928,560.80/x - Step 3: Cross multiply
884,388,861.12x = 1,220,449,812.48 × 487,928,560.80 - Step 4: Simplify right side
884,388,861.12x = 595,492,320,531,996,288 - Step 5: Solve for x
x = 595,492,320,531,996,288/884,388,861.12 - Step 6: Final answer
x = 673,337,653.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.