Finding the Fourth Proportional to 6,780,345,917.08, 9,357,080,099.49 and 3,728,363,660.79
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Solution
The fourth proportional to 6,780,345,917.08, 9,357,080,099.49 and 3,728,363,660.79 is: 5,145,253,330.83
Step by Step Solution
- Step 1: Write the proportion equation
6,780,345,917.08 : 9,357,080,099.49 = 3,728,363,660.79 : x - Step 2: Convert to fraction form
6,780,345,917.08/9,357,080,099.49 = 3,728,363,660.79/x - Step 3: Cross multiply
6,780,345,917.08x = 9,357,080,099.49 × 3,728,363,660.79 - Step 4: Simplify right side
6,780,345,917.08x = 34,886,597,414,039,793,664 - Step 5: Solve for x
x = 34,886,597,414,039,793,664/6,780,345,917.08 - Step 6: Final answer
x = 5,145,253,330.83
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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.