Finding the Fourth Proportional to 4,298,346,772.80, 6,436,770,616.80 and 3,438,383,380.80
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Solution
The fourth proportional to 4,298,346,772.80, 6,436,770,616.80 and 3,438,383,380.80 is: 5,148,976,172.63
Step by Step Solution
- Step 1: Write the proportion equation
4,298,346,772.80 : 6,436,770,616.80 = 3,438,383,380.80 : x - Step 2: Convert to fraction form
4,298,346,772.80/6,436,770,616.80 = 3,438,383,380.80/x - Step 3: Cross multiply
4,298,346,772.80x = 6,436,770,616.80 × 3,438,383,380.80 - Step 4: Simplify right side
4,298,346,772.80x = 22,132,085,114,826,887,168 - Step 5: Solve for x
x = 22,132,085,114,826,887,168/4,298,346,772.80 - Step 6: Final answer
x = 5,148,976,172.63
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1.5x scale
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.