Finding the Fourth Proportional to 7,489,285,443.24, 10,330,236,267.18 and 4,816,446,777.60
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Solution
The fourth proportional to 7,489,285,443.24, 10,330,236,267.18 and 4,816,446,777.60 is: 6,643,495,371.89
Step by Step Solution
- Step 1: Write the proportion equation
7,489,285,443.24 : 10,330,236,267.18 = 4,816,446,777.60 : x - Step 2: Convert to fraction form
7,489,285,443.24/10,330,236,267.18 = 4,816,446,777.60/x - Step 3: Cross multiply
7,489,285,443.24x = 10,330,236,267.18 × 4,816,446,777.60 - Step 4: Simplify right side
7,489,285,443.24x = 49,755,033,180,905,766,912 - Step 5: Solve for x
x = 49,755,033,180,905,766,912/7,489,285,443.24 - Step 6: Final answer
x = 6,643,495,371.89
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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.