Finding the Fourth Proportional to 7,878,584.78, 10,873,282.80 and 4,618,138.82
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Solution
The fourth proportional to 7,878,584.78, 10,873,282.80 and 4,618,138.82 is: 6,373,521.49
Step by Step Solution
- Step 1: Write the proportion equation
7,878,584.78 : 10,873,282.80 = 4,618,138.82 : x - Step 2: Convert to fraction form
7,878,584.78/10,873,282.80 = 4,618,138.82/x - Step 3: Cross multiply
7,878,584.78x = 10,873,282.80 × 4,618,138.82 - Step 4: Simplify right side
7,878,584.78x = 50,214,329,399,518.30 - Step 5: Solve for x
x = 50,214,329,399,518.30/7,878,584.78 - Step 6: Final answer
x = 6,373,521.49
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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.