Finding the Fourth Proportional to 7,489,285,441.80, 10,330,236,265.20 and 4,816,446,776.18
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Solution
The fourth proportional to 7,489,285,441.80, 10,330,236,265.20 and 4,816,446,776.18 is: 6,643,495,369.93
Step by Step Solution
- Step 1: Write the proportion equation
7,489,285,441.80 : 10,330,236,265.20 = 4,816,446,776.18 : x - Step 2: Convert to fraction form
7,489,285,441.80/10,330,236,265.20 = 4,816,446,776.18/x - Step 3: Cross multiply
7,489,285,441.80x = 10,330,236,265.20 × 4,816,446,776.18 - Step 4: Simplify right side
7,489,285,441.80x = 49,755,033,156,695,433,216 - Step 5: Solve for x
x = 49,755,033,156,695,433,216/7,489,285,441.80 - Step 6: Final answer
x = 6,643,495,369.93
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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.