Finding the Fourth Proportional to 3,416,991,636.80, 5,125,487,455.20 and 832,062,612.80
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Solution
The fourth proportional to 3,416,991,636.80, 5,125,487,455.20 and 832,062,612.80 is: 1,248,093,919.20
Step by Step Solution
- Step 1: Write the proportion equation
3,416,991,636.80 : 5,125,487,455.20 = 832,062,612.80 : x - Step 2: Convert to fraction form
3,416,991,636.80/5,125,487,455.20 = 832,062,612.80/x - Step 3: Cross multiply
3,416,991,636.80x = 5,125,487,455.20 × 832,062,612.80 - Step 4: Simplify right side
3,416,991,636.80x = 4,264,726,483,847,334,400 - Step 5: Solve for x
x = 4,264,726,483,847,334,400/3,416,991,636.80 - Step 6: Final answer
x = 1,248,093,919.20
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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.