Finding the Fourth Proportional to 5,065,336,869.78, 6,990,165,542.84 and 2,807,422,168.09
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Solution
The fourth proportional to 5,065,336,869.78, 6,990,165,542.84 and 2,807,422,168.09 is: 3,874,242,959.17
Step by Step Solution
- Step 1: Write the proportion equation
5,065,336,869.78 : 6,990,165,542.84 = 2,807,422,168.09 : x - Step 2: Convert to fraction form
5,065,336,869.78/6,990,165,542.84 = 2,807,422,168.09/x - Step 3: Cross multiply
5,065,336,869.78x = 6,990,165,542.84 × 2,807,422,168.09 - Step 4: Simplify right side
5,065,336,869.78x = 19,624,345,703,569,653,760 - Step 5: Solve for x
x = 19,624,345,703,569,653,760/5,065,336,869.78 - Step 6: Final answer
x = 3,874,242,959.17
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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.