Finding the Fourth Proportional to 2,659,403,865.30, 3,989,105,797.95 and 1,281,908,793.30
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Solution
The fourth proportional to 2,659,403,865.30, 3,989,105,797.95 and 1,281,908,793.30 is: 1,922,863,189.95
Step by Step Solution
- Step 1: Write the proportion equation
2,659,403,865.30 : 3,989,105,797.95 = 1,281,908,793.30 : x - Step 2: Convert to fraction form
2,659,403,865.30/3,989,105,797.95 = 1,281,908,793.30/x - Step 3: Cross multiply
2,659,403,865.30x = 3,989,105,797.95 × 1,281,908,793.30 - Step 4: Simplify right side
2,659,403,865.30x = 5,113,669,799,796,117,504 - Step 5: Solve for x
x = 5,113,669,799,796,117,504/2,659,403,865.30 - Step 6: Final answer
x = 1,922,863,189.95
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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.