Finding the Fourth Proportional to 5,413,144.68, 8,119,848.78 and 1,818,963.72
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Solution
The fourth proportional to 5,413,144.68, 8,119,848.78 and 1,818,963.72 is: 2,728,489.85
Step by Step Solution
- Step 1: Write the proportion equation
5,413,144.68 : 8,119,848.78 = 1,818,963.72 : x - Step 2: Convert to fraction form
5,413,144.68/8,119,848.78 = 1,818,963.72/x - Step 3: Cross multiply
5,413,144.68x = 8,119,848.78 × 1,818,963.72 - Step 4: Simplify right side
5,413,144.68x = 14,769,710,342,706.26 - Step 5: Solve for x
x = 14,769,710,342,706.26/5,413,144.68 - Step 6: Final answer
x = 2,728,489.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.