Finding the Fourth Proportional to 7,873,815.09, 10,865,864.98 and 4,252,143.09
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Solution
The fourth proportional to 7,873,815.09, 10,865,864.98 and 4,252,143.09 is: 5,867,957.55
Step by Step Solution
- Step 1: Write the proportion equation
7,873,815.09 : 10,865,864.98 = 4,252,143.09 : x - Step 2: Convert to fraction form
7,873,815.09/10,865,864.98 = 4,252,143.09/x - Step 3: Cross multiply
7,873,815.09x = 10,865,864.98 × 4,252,143.09 - Step 4: Simplify right side
7,873,815.09x = 46,203,212,737,642.16 - Step 5: Solve for x
x = 46,203,212,737,642.16/7,873,815.09 - Step 6: Final answer
x = 5,867,957.55
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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.