Finding the Fourth Proportional to 2,680,129,106.70, 4,020,193,660.05 and 1,991,381,570.70
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Solution
The fourth proportional to 2,680,129,106.70, 4,020,193,660.05 and 1,991,381,570.70 is: 2,987,072,356.05
Step by Step Solution
- Step 1: Write the proportion equation
2,680,129,106.70 : 4,020,193,660.05 = 1,991,381,570.70 : x - Step 2: Convert to fraction form
2,680,129,106.70/4,020,193,660.05 = 1,991,381,570.70/x - Step 3: Cross multiply
2,680,129,106.70x = 4,020,193,660.05 × 1,991,381,570.70 - Step 4: Simplify right side
2,680,129,106.70x = 8,005,739,565,268,551,680 - Step 5: Solve for x
x = 8,005,739,565,268,551,680/2,680,129,106.70 - Step 6: Final answer
x = 2,987,072,356.05
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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.