Finding the Fourth Proportional to 5,065,336,871.78, 6,990,165,545.60 and 2,807,422,170.09
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Solution
The fourth proportional to 5,065,336,871.78, 6,990,165,545.60 and 2,807,422,170.09 is: 3,874,242,961.93
Step by Step Solution
- Step 1: Write the proportion equation
5,065,336,871.78 : 6,990,165,545.60 = 2,807,422,170.09 : x - Step 2: Convert to fraction form
5,065,336,871.78/6,990,165,545.60 = 2,807,422,170.09/x - Step 3: Cross multiply
5,065,336,871.78x = 6,990,165,545.60 × 2,807,422,170.09 - Step 4: Simplify right side
5,065,336,871.78x = 19,624,345,725,316,702,208 - Step 5: Solve for x
x = 19,624,345,725,316,702,208/5,065,336,871.78 - Step 6: Final answer
x = 3,874,242,961.93
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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.