Finding the Fourth Proportional to 2,989,485,445.18, 4,125,409,986.20 and 1,651,346,734.79
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Solution
The fourth proportional to 2,989,485,445.18, 4,125,409,986.20 and 1,651,346,734.79 is: 2,278,814,342.90
Step by Step Solution
- Step 1: Write the proportion equation
2,989,485,445.18 : 4,125,409,986.20 = 1,651,346,734.79 : x - Step 2: Convert to fraction form
2,989,485,445.18/4,125,409,986.20 = 1,651,346,734.79/x - Step 3: Cross multiply
2,989,485,445.18x = 4,125,409,986.20 × 1,651,346,734.79 - Step 4: Simplify right side
2,989,485,445.18x = 6,812,482,310,381,428,736 - Step 5: Solve for x
x = 6,812,482,310,381,428,736/2,989,485,445.18 - Step 6: Final answer
x = 2,278,814,342.90
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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.