Finding the Fourth Proportional to 5,768,690,959.20, 8,653,036,438.80 and 5,381,707,432.80
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Solution
The fourth proportional to 5,768,690,959.20, 8,653,036,438.80 and 5,381,707,432.80 is: 8,072,561,149.20
Step by Step Solution
- Step 1: Write the proportion equation
5,768,690,959.20 : 8,653,036,438.80 = 5,381,707,432.80 : x - Step 2: Convert to fraction form
5,768,690,959.20/8,653,036,438.80 = 5,381,707,432.80/x - Step 3: Cross multiply
5,768,690,959.20x = 8,653,036,438.80 × 5,381,707,432.80 - Step 4: Simplify right side
5,768,690,959.20x = 46,568,110,518,979,198,976 - Step 5: Solve for x
x = 46,568,110,518,979,198,976/5,768,690,959.20 - Step 6: Final answer
x = 8,072,561,149.20
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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.